CN111351917A - Quick detection device of moisture content - Google Patents

Abstract

The invention discloses a rapid moisture content detection device, comprising a soil moisture sensor, a casing, a circuit integrated board and a single-chip microcomputer. One side of the casing is provided with a liquid crystal display screen, and both sides of one end of the casing are provided with USB interfaces. One end inside the casing is fixed with a battery, and a circuit integrated board is fixed above the battery. The output end of the single-chip microcomputer is electrically connected to the liquid crystal display screen, the data memory and the input end of the wireless signal transceiver module respectively through wires. The invention is provided with a soil moisture sensor, a data sensor and a single chip, so that the signal detected by the soil moisture sensor is converted by a data converter and then transmitted to the single chip, and the measurement is calculated from the comparison relationship between the moisture content and the material moisture in the single chip. The moisture content is high, the operation is simple, efficient, convenient to use, and the traditional method is abandoned, and the safety is higher.

Description

Moisture content rapid detection device

technical field

The invention relates to the technical field of auxiliary equipment for highway construction, in particular to a device for rapid detection of moisture content.

Background technique

The stability of the roadbed has always been around the construction quality. The stability of the roadbed will directly affect the safety and comfort of driving. The factors affecting the stability of the roadbed mainly include natural factors and human factors. The influence of natural factors mainly depends on reasonable It is designed to weaken and overcome, and the human factor is mainly overcome from the standard construction process, so it is the key to control the compaction of the roadbed;

In highway construction, the factors that affect the compaction of the roadbed are: the influence of unfavorable geological conditions and climate, the quality of the filling material, the improper treatment of the soft foundation, the control of the water content, the thickness of the loose paving, and the matching situation of the construction machinery and equipment , the influence of human factors, etc.;

In actual work, the key point is that the optimal moisture content obtained indoors may be too different from that of the road roller used in the field, but in general, there is not much difference between the two. When the moisture content of the material is close to the optimal moisture content of the road roller, The required compaction work is small. When the specified construction method is used to control the compaction, the control of the water content is the key point of the rolling process. In order to ensure a satisfactory compaction effect, the road construction materials are rolled under the optimal moisture content conditions of the road roller. pressure is extremely important;

At present, the commonly used method for rapid on-site determination of moisture content in construction is mainly the alcohol combustion method, which is the most commonly used test method at present.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a rapid moisture content detection device, so as to solve the problems of troublesome operation and high risk in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a rapid moisture content detection device, comprising a soil moisture sensor, a casing, a circuit integrated board and a single-chip microcomputer, one side of the casing is installed with a liquid crystal display screen, and one end of the casing is Both sides are provided with USB interfaces, a battery is fixed at one end of the casing, and a circuit integrated board is fixed above the battery. A data memory is fixed on the side close to the USB interface, a data converter is fixed on the circuit integrated board above the single-chip microcomputer, and a wireless signal transceiver module is fixed on the circuit integrated board below the single-chip microcomputer, and one end of the top of the casing is connected by a cable The wire is fixed with a handle, the top of the handle is fixed with a handle seat, and both ends of the top of the handle seat are provided with reserved grooves, the top of the reserved grooves are fixed with a soil moisture sensor, and the bottom end of the soil moisture sensor Each is fixed with a reserved block that cooperates with the reserved slot, the output end of the soil moisture sensor is electrically connected with the input end of the data converter, and the output end of the data converter is electrically connected with the input end of the single-chip microcomputer, and the single-chip microcomputer is electrically connected. The output end of the device is electrically connected with the liquid crystal display screen, the data memory and the input end of the wireless signal transceiver module respectively through wires.

Preferably, the top of the soil moisture sensor is triangular, and the surface of the soil moisture sensor is nickel-plated, and there are two soil moisture sensors, and the soil moisture sensors are symmetrical about the handle base.

Preferably, the outer side wall of the reserved block is provided with an outer thread, and the inner side wall of the reserved slot is provided with an inner thread that cooperates with the outer thread.

Preferably, a mortise and tenon structure principle is used between the handle and the handle base to form a detachable structure, and the handle is covered with a rubber sleeve.

Preferably, the cable is in the shape of a coil spring.

Preferably, a handle is fixed at one end of the housing, and protrusions are evenly arranged on the surface of the handle.

Compared with the prior art, the beneficial effects of the present invention are:

1. The water content rapid detection device is provided with a soil moisture sensor, a data sensor and a single chip, so that the signal detected by the soil moisture sensor is converted by a data converter and transmitted to the single chip, and the moisture content in the single chip is compared with the material humidity. The relational formula calculates the measured moisture content, which is simple, efficient, and convenient to use, and abandons the traditional method, with higher safety;

2. The device is fixed with a handle at one end of the shell, which is convenient for users to hold, easy to use, and easy to carry;

3. The device can improve the conductivity by nickel-plating the surface of the soil moisture sensor to prevent contact with soil and other materials that are easy to rust, and prolong the service life;

4. The device is provided with a wireless signal transceiver module and a data memory, so that the measured data can be transmitted and stored in real time, which greatly improves the practicability of the device.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a schematic diagram of a partial cross-sectional structure of the casing of the present invention;

Fig. 3 is the enlarged structure schematic diagram of A place in Fig. 1 of the present invention;

FIG. 4 is a system diagram of the present invention.

In the picture: 1. Soil moisture sensor; 2. Handle base; 3. Reserved block; 4. Handle; 5. Cable; 6. LCD screen; 7. Housing; 8. Grip; 9. Circuit integrated board ; 10, data converter; 11, microcontroller; 12, data memory; 13, wireless signal transceiver module; 14, USB interface; 15, battery; 16, reserved slot.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, an embodiment provided by the present invention: a rapid moisture content detection device, including a soil moisture sensor 1, a housing 7, a circuit integrated board 9 and a single-chip microcomputer 11, and a liquid crystal display is installed on one side of the housing 7 The screen 6, and both sides of one end of the casing 7 are provided with a USB interface 14, one end of the casing 7 is fixed with a handle 8, and the surface of the handle 8 is evenly provided with protrusions, which increases friction and is easy to hold. 7. A battery 15 is fixed at one end of the inner side, and a circuit integrated board 9 is fixed above the battery 15. A single-chip microcomputer 11 is installed in the middle position of the circuit integrated board 9 near the liquid crystal display screen 6. The single-chip computer 11 has the moisture content and material humidity. The model of the microcontroller 11 can be HT66F018, and the side of the microcontroller 11 close to the USB interface 14 is fixed with a data memory 12, the model of the data memory 12 can be SDRAM, and the circuit integrated board 9 above the microcontroller 11 is fixed on the A data converter 10, the model of the data converter 10 can be ADS830E, and a wireless signal transceiver module 13 is fixed on the circuit integrated board 9 under the single chip 11, and one end of the top of the housing 7 is fixed with a handle 4 through a cable 5, and the handle The mortise and tenon structure principle is used between 4 and the handle base 2 to form a detachable structure, and the handle 4 is covered with a rubber sleeve, which is convenient for disassembly and maintenance of the device, and is easy to carry. The range of movement is wide and the use is convenient. The handle base 2 is fixed at the top of the handle 4, and the two ends of the top of the handle base 2 are provided with reserved grooves 16. The top of the reserved grooves 16 is fixed with a soil moisture sensor 1. The model of the humidity sensor 1 can be XKCON-TR-485-001, and the bottom end of the soil humidity sensor 1 is fixed with a reserved block 3 that cooperates with the reserved groove 16. The inner wall of the reserved groove 16 is provided with an inner thread that cooperates with the outer thread, which is convenient for disassembly and replacement of the soil moisture sensor 1, convenient maintenance, and convenient use. The top of the soil moisture sensor 1 is triangular, which is easy to insert into the material. And the surface of the soil moisture sensor 1 is nickel-plated, which can improve the conductivity, prevent the problem of contact with soil and other materials that are easy to rust, and prolong the service life. At the same time, there are two soil moisture sensors 1, and the soil moisture sensor 1 is about the handle seat. 2 is symmetrical from left to right to ensure that the output end of the regular soil moisture sensor 1 is electrically connected to the input end of the data converter 10, and the output end of the data converter 10 is electrically connected to the input end of the single-chip microcomputer 11, and the output end of the single-chip microcomputer 11 is connected to the The liquid crystal display screen 6 , the data storage 12 and the input end of the wireless signal transceiver module 13 are electrically connected.

Working principle: When in use, the battery 15 provides power for the device. First, the optimal moisture content measured by the laboratory is input through the liquid crystal display 6, and then the soil moisture sensor 1 is directly inserted into the material, and then the soil moisture sensor 1 detects The signal is converted by the data converter 10 and transmitted to the single-chip microcomputer 11, and is converted into the moisture content of the material by the comparative relationship between the moisture content and the material humidity in the single-chip microcomputer 11, and finally obtained by comparing the measured moisture content and the optimum moisture content. In conclusion, is it possible to carry out the next operation? This method is simple, efficient, convenient to use, and abandons the traditional method, and has higher safety. The problem that other materials such as contact with soil are easy to rust, prolong the service life, the outer side wall of the reserved block 3 is provided with an outer thread, and the inner side wall of the reserved groove 16 is provided with an inner thread that cooperates with the outer thread, which is convenient for soil moisture. The disassembly and replacement of sensor 1 is convenient for maintenance.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. Moisture content short-term test device, including soil moisture sensor (1), casing (7), circuit integrated board (9) and singlechip (11), its characterized in that: a liquid crystal display (6) is installed on one side of the shell (7), USB interfaces (14) are arranged on two sides of one end of the shell (7), a storage battery (15) is fixed to one end of the interior of the shell (7), a circuit board (9) is fixed above the storage battery (15), a single chip microcomputer (11) is installed at a middle position of the circuit board (9) close to one side of the liquid crystal display (6), a data storage device (12) is fixed to one side of the single chip microcomputer (11) close to the USB interfaces (14), a data converter (10) is fixed to the circuit board (9) above the single chip microcomputer (11), a wireless signal receiving and sending module (13) is fixed to the circuit board (9) below the single chip microcomputer (11), a handle (4) is fixed to one end of the top of the shell (7) through a cable (5), and a handle seat (2) is fixed to the top end of the handle (4), and the both ends at handle seat (2) top all are provided with reservation groove (16), the top of reservation groove (16) all is fixed with soil moisture sensor (1), and the bottom of soil moisture sensor (1) all is fixed with reservation piece (3) of mutually supporting with reservation groove (16), the output of soil moisture sensor (1) is connected with the input electricity of data converter (10), and the output of data converter (10) is connected with the input electricity of singlechip (11), the output of singlechip (11) passes through the wire respectively with liquid crystal display (6), data memory (12) and the input electric connection of wireless signal transceiver module (13).

2. The device for rapidly detecting the water content according to claim 1, characterized in that: the top of soil moisture sensor (1) is triangle-shaped, and the surface of soil moisture sensor (1) is through nickel plating treatment, and soil moisture sensor (1) is provided with two simultaneously, and soil moisture sensor (1) is about handle seat (2) bilateral symmetry.

3. The device for rapidly detecting the water content according to claim 1, characterized in that: the outer side wall of the reserved block (3) is provided with an external thread, and the inner side wall of the reserved groove (16) is provided with an internal thread matched with the external thread.

4. The device for rapidly detecting the water content according to claim 1, characterized in that: adopt tenon fourth of twelve earthly branches structure principle to constitute detachable construction between handle (4) and handle seat (2), and the cover has the rubber sleeve on handle (4).

5. The device for rapidly detecting the water content according to claim 1, characterized in that: the cable (5) is in a spiral spring shape.

6. The device for rapidly detecting the water content according to claim 1, characterized in that: a grab handle (8) is fixed at one end of the shell (7), and protrusions are uniformly arranged on the surface of the grab handle (8).

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