CN218157959U - Portable anemograph based on USB interface of mining explosion-proof mobile phone - Google Patents

Abstract

The utility model discloses a portable anemometer based on the USB interface of a mining explosion-proof mobile phone, which comprises a hot-wire probe for feeling wind speed, a control circuit board for calculation and analysis, and a device for preventing the anemometer from accidentally detaching during use. An interface protection cover belongs to the technical field of mine anemometers. The portable anemometer is powered by the USB interface of the mine-used explosion-proof mobile phone. It is used together with the mine-used explosion-proof mobile phone. It replaces the mechanical wind meter used in the underground line method to measure wind speed. The stopwatch timing is realized by the mine-used explosion-proof mobile phone. Mining explosion-proof mobile phone. The utility model solves the problems of manual wind measurement in underground mines, such as complicated steps, many instruments carried by the wind measurement personnel, manual recording, lagging data processing, low measurement accuracy, etc., and can effectively improve the working efficiency of the wind measurement personnel.

Description

A portable anemometer based on the USB interface of mine-used explosion-proof mobile phone

technical field

The utility model relates to the technical field of mine anemometers, in particular to a portable anemometer based on the USB interface of a mine explosion-proof mobile phone.

Background technique

Mine ventilation can provide enough fresh air for each working place in the mine, supply the operating personnel to breathe, and control the concentration of toxic and harmful gases and dust within the specified range. It is the main technical means to ensure safe production in mines. Wind speed, as an important index to test the mine ventilation effect, needs to be mastered by the ventilation managers in real time, and the accuracy of its measurement is an important content of the mine's daily ventilation work.

At present, there are two main ways for mine ventilation managers to obtain the underground wind speed. One is to install wind speed sensors at various locations in the mine, and the other is to use a wind gauge to measure underground with a mechanical wind meter. Since the wind speed sensor is installed in a fixed place underground, although it can respond to changes in wind speed in real time, it only measures the point wind speed or line wind speed at the installation position, and the wind gauge is measured by the line method with a mechanical wind meter. Although the obtained average wind speed is obtained, the steps of this method are cumbersome, affected by the technical proficiency of the wind tester, and the applicable wind speed range of a single mechanical wind meter is small, and different mechanical wind meters need to be used when measuring low, medium and high wind speeds. Nor is it suitable for light wind conditions. Considering the advantages of the two methods, if the wind speed sensor and the line wind speed method are combined, the accurate measurement of the average wind speed of the roadway can be realized.

Utility model content

The utility model provides a portable anemometer based on the USB interface of a mine-used explosion-proof mobile phone in order to solve the problems of cumbersome working steps, complicated equipment, and lack of real-time performance and accuracy of measurement data in underground wind speed measurement.

In order to achieve the above object, the concrete technical scheme of the portable anemometer based on the mine explosion-proof mobile phone USB interface of the present utility model is as follows:

A portable anemometer based on the USB interface of a mine-used explosion-proof mobile phone, including a casing, a control circuit board is fixedly installed inside the casing, and the control circuit board is provided with a signal processing module, an operation analysis module and a power supply module, and the signal processing The module includes a signal amplification and conditioning circuit, a CTA control circuit and an A/D conversion circuit. The CTA control circuit is composed of a bridge circuit and a feedback compensation circuit. The power supply module includes a power supply circuit and a data transmission circuit. The control circuit board is set There is a USB connector, and an interface protection cover is installed above the USB connector;

A protective cover is fixedly connected to the lower part of the housing, and a wind speed probe is fixedly connected to the lower part of the protective cover. The inside of the protective cover and the wind speed probe is filled with insulating packing, and a connecting line is threaded through the insulating packing. The bottom of the wind speed probe An opening is provided, and a sensitive element is arranged in the opening, and the sensitive element is coupled with the lower end of the connection line through the support rod, and the upper end of the connection line is coupled with the signal processing module.

Further, the sensitive element adopts a tungsten wire with a length of 3 mm and a diameter of 0.0025 mm.

Further, the signal processing module is electrically connected with the operation analysis module and the power supply module, and the signal processing module is electrically connected with the sensitive element.

Further, the operation analysis module is a single-chip microcomputer.

Further, the power module is provided with an external interface, and the external interface is a Type-C interface.

Further, a protruding mechanism is provided at the bottom of the interface protection cover, a support block is fixedly connected to the inner wall of the top of the housing, the support block is fixedly connected to a support column, and a spring is set on the support column, and one side of the spring is It is fixedly connected with the support block, and the other side of the spring is fixedly connected with the protruding mechanism.

Further, the USB connector is a Type-C connector.

Further, an explosion-proof mobile phone for mining is installed between the first protective cover and the second protective cover, and the explosion-proof mobile phone for mining is provided with a USB interface, and the USB interface is plugged into the USB connector.

Compared with the prior art, the beneficial effect of the utility model is: the utility model combines the real-time performance of the wind speed measurement by the underground wind speed sensor with the accuracy of the wind speed measurement by the line method, and can realize the average wind speed of the roadway accurately, in real time and conveniently. determination. The portable anemometer is easy to carry and is used with mine explosion-proof mobile phones, which not only reduces the number of wind measuring instruments that the wind measuring personnel need to use, but also facilitates the underground activities of the wind measuring personnel, and simplifies the stopwatch timing in the line method wind speed measurement , data recording, data post-processing and other steps can effectively improve the work efficiency of wind measuring personnel and reduce the daily maintenance work of ventilation instruments.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the front view of the utility model;

Fig. 2 is a side view of the utility model;

Fig. 3 is the top view of the utility model;

Fig. 4 is the sectional view of interface protection cover and USB joint in the utility model;

Fig. 5 is a sectional view of the top of the housing in the utility model;

Fig. 6 is a sectional view of the wind speed probe in the utility model;

Fig. 7 is the sectional view of the horizontal section of protective cover in the utility model;

Figure 8 is a schematic diagram of the installation of the utility model in cooperation with the mine explosion-proof mobile phone;

Fig. 9 is a system block diagram of the utility model;

Marking instructions in the figure: 1. Shell; 2. Control circuit board; 3. Wind speed probe; 4. Interface protection cover; 5. USB connector; 6. Spring; 7. Sensitive components; 10. Protective cover; 11. Insulating filler; 12. Mining explosion-proof mobile phone; 13. Raised mechanism; 14. Support column; 15. Support block.

detailed description

In order to better understand the purpose, structure and function of the utility model, a portable anemometer based on the mine explosion-proof mobile phone USB interface of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper end", "lower end", "upper part", "lower part", "upper part" and "lower part" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the utility model. limit.

Example 1:

Please refer to Figures 1-9, the utility model provides a technical solution: a portable anemometer based on the USB interface of a mining explosion-proof mobile phone, including a casing 1, and a control circuit board 2 is fixedly installed inside the casing 1, and the control circuit board 2 is fixed inside the casing 1. The circuit board 2 is used to process the analog signal generated by the sensitive element 7, calculate the ambient wind speed, and carry out data transmission with the mine explosion-proof mobile phone 12. The control circuit board 2 is provided with a signal processing module, an operation analysis module and a power supply module. The signal processing module is used to filter, amplify, and condition the analog signal generated by the sensitive element 7 of the wind speed probe 3, and then convert it into a digital signal and transmit it to the calculation and analysis module; the signal processing module includes a signal amplification and conditioning circuit, a CTA control circuit and A/D conversion circuit; the operation analysis module is used to calculate the environmental wind speed value according to the digital signal transmitted by the signal processing module, and responds according to the preset program when the mine explosion-proof mobile phone 12 sends an instruction; the power module is used for Provide external power supply for the control circuit board 2, and pass the ambient wind speed data calculated by the operation analysis module to the mine explosion-proof mobile phone 12, and when the mine explosion-proof mobile phone 12 sends an instruction, the instruction is passed to the operation analysis module; the CTA control circuit is composed of Composed of a bridge circuit and a feedback compensation circuit; the CTA control circuit plays a role when the ambient wind speed changes, causing the current flowing through the sensitive element 7 to change accordingly, thereby keeping the temperature of the sensitive element 7 constant; the power module includes Power supply circuit and data transmission circuit, the control circuit board 2 is provided with a USB connector 5, an interface protection cover 4 is installed above the USB connector 5, and the interface protection cover 4 is composed of two left and right symmetrical structures, which can be outwardly Pull it apart and return to the original position under the action of the spring structure; the interface protection cover 4 is used to reduce the wear and tear on the USB connector 5 of the anemometer in the underground wet and dusty environment, and prevent the anemometer from being disconnected from the mine explosion-proof mobile phone when it is working. 12 accidentally fell off;

A protective cover 10 is fixedly connected to the lower part of the housing 1, and a wind speed probe 3 is fixedly connected to the lower part of the protective cover 10. The wind speed probe 3 is used to monitor the change of the environmental wind speed at the sensitive element 7 at the top of the probe. The protective cover 10 and The inside of the wind speed probe 3 is filled with insulating packing 11, the insulating packing 11 is pierced with a connecting wire 9, the bottom of the wind speed probe 3 is provided with an opening, and a sensitive element 7 is arranged in the opening, and the sensitive element 7 passes through the support The rod 8 is coupled to the lower end of the connecting wire 9, the upper end of the connecting wire 9 is coupled to the signal processing module, two struts 8 are provided, and the upper part of the strut 8 is embedded in the insulating filler 11 , the lower part of the pole 8 is fixedly connected with the sensitive element 7 .

Further, the sensitive element 7 adopts a tungsten wire with a length of 3 mm and a diameter of 0.0025 mm.

Further, the signal processing module is electrically connected with the operation analysis module and the power supply module, and the signal processing module is electrically connected with the sensitive element 7 .

Further, the operation analysis module is a single-chip microcomputer.

Further, the power module is provided with an external interface, and the external interface is a Type-C interface.

Further, the bottom of the interface protection cover 4 is provided with a protruding mechanism, the inner wall of the top of the housing 1 is fixedly connected with a support block, and the support block is fixedly connected with a support column, and the support column is provided with a spring 6. One side of the spring 6 is fixedly connected with the support block, and the other side of the spring 6 is fixedly connected with the protrusion mechanism.

Further, the USB connector 5 is a Type-C connector.

Further, an explosion-proof mobile phone 12 for mining is installed between the first protective cover and the second protective cover, and the explosion-proof mobile phone 12 for mining is provided with a USB interface, and the USB interface is plug-in connected with the USB connector 5 .

It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalents can be made to these features and embodiments without departing from the spirit and scope of the utility model replace. In addition, the features and embodiments may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the present utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present utility model.

Claims (7)

1. The utility model provides a portable anemograph based on mining explosion-proof cell-phone USB interface which characterized in that: the intelligent control device comprises a shell (1), wherein a control circuit board (2) is fixedly mounted inside the shell (1), the control circuit board (2) is provided with a signal processing module, an operation analysis module and a power module, the signal processing module comprises a signal amplification conditioning circuit, a CTA control circuit and an A/D conversion circuit, the CTA control circuit consists of a bridge circuit and a feedback compensation circuit, the power module comprises a power supply circuit and a data transmission circuit, the control circuit board (2) is provided with a USB joint (5), and an interface protective cover (4) is mounted above the USB joint (5);

the utility model discloses a wind speed sensor, including shell (1), safety cover (10) below fixedly connected with wind speed probe (3), safety cover (10) and wind speed probe (3) inside packing have insulating filler (11), wear to be equipped with connecting wire (9) in insulating filler (11), wind speed probe (3) bottom is equipped with the opening, be equipped with sensing element (7) in the opening, sensing element (7) through branch (8) with the lower extreme coupling of connecting wire (9), the upper end of connecting wire (9) with the coupling of signal processing module.

2. The portable anemometer based on USB interface of explosion-proof mobile phone for mining according to claim 1, wherein the sensing element (7) is a tungsten wire with a length of 3mm and a diameter of 0.0025 mm.

3. The portable anemometer based on a USB interface of a mining explosion-proof mobile phone according to claim 1, wherein the signal processing module is electrically connected with the operation analysis module and the power supply module, and the signal processing module is electrically connected with the sensitive element (7).

4. The portable anemometer based on the USB interface of the mining explosion-proof mobile phone according to claim 1, wherein the operational analysis module is a single chip microcomputer.

5. The portable anemometer based on the USB interface of the mining explosion-proof mobile phone according to claim 1, wherein the power module is provided with an external interface, and the external interface is a Type-C interface.

6. The portable anemometer based on USB interface of explosion-proof mobile phone for mining according to claim 1, wherein a protrusion mechanism is disposed at the bottom of the interface protection cover (4), a support block is fixedly connected to the inner wall of the top of the housing (1), a support column is fixedly connected to the support block, a spring (6) is sleeved on the support column, one side of the spring (6) is fixedly connected to the support block, and the other side of the spring (6) is fixedly connected to the protrusion mechanism.

7. The portable anemometer based on the USB interface of the mining explosion-proof mobile phone according to claim 1, wherein the USB connector (5) is a Type-C connector.

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