Mining intrinsic safety type wireless signal converter based on LoRa technology

Abstract

The utility model provides a mining intrinsic safety type wireless signal converter based on LoRa technology, comprising a converter body, the converter body comprises a housing, a rear cover and a mainboard, the rear side of the housing is fixedly provided with the rear cover through screws, the upper end of the housing is welded with a handle, the left end of the housing is provided with an antenna, and the antenna is connected with the mainboard. The left side and the right side of the shell are respectively provided with a plurality of connectors, a main board is installed inside the shell, and a single chip microcomputer is installed on the upper surface of the main board through a chip seat. The problem that the wireless sensor equipment cannot be controlled due to the fact that cables cannot be laid at some positions of a coal mine and wired transmission cannot be achieved is effectively solved, and meanwhile it can be guaranteed that the converter body can keep stable data transmission to the upper computer.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal converters, and particularly relates to a mining intrinsically safe wireless signal converter based on LoRa technology. Background Art

[0002] In recent years, the mining depth and scale of coal mines, especially large-scale coal mines, have continued to expand, requiring the expansion of the sensor monitoring system network. However, the wired monitoring system has the disadvantages of high installation cost, long construction period, and life span greatly affected by external factors. At the same time, there are also difficulties in laying cables in some places, resulting in the failure of some monitoring network functions, resulting in the inability to comprehensively and accurately monitor the underground gas concentration, which has brought hidden dangers to the safe production of coal mines. Some places urgently need to adopt wireless networks for data transmission.

[0003] After the wireless sensor is installed, due to the limited wireless transmission distance, in order to timely collect the status of the coal mine production site, it is necessary to use fieldbus technology to connect the sensors and monitoring equipment distributed in various locations, and then store the production data and status in the database. However, due to the influence of the on-site conditions, some locations in the coal mine cannot lay cables, and wired transmission cannot be achieved, and thus control cannot be performed. Therefore, we hope to design a signal converter with a new structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a mining intrinsically safe wireless signal converter based on LoRa technology to solve the problems raised in the above background technology.

[0005] The utility model is realized by the following technical scheme: a mine intrinsically safe wireless signal converter based on LoRa technology, comprising: a converter body, the converter body comprising a shell, a back cover and a main board, the back side of the shell is fixed with a back cover by screws, and a handle is welded on the upper end of the shell;

[0006] An antenna is installed at the left end of the shell, and a plurality of connectors are respectively provided on the left and right sides of the shell;

[0007] A mainboard is installed inside the shell, a single-chip microcomputer is installed on the upper surface of the mainboard through a chip seat, a wireless module is installed on the upper surface of the mainboard through a wireless module seat, and a communication module is installed on the upper surface of the mainboard through a communication module seat.

[0008] As a preferred implementation, a wireless signal conversion circuit is disposed on the upper surface of the mainboard, and a remote wired communication circuit is disposed on the upper surface of the mainboard.

[0009] As a preferred implementation, the single chip microcomputer is connected to a wireless module circuit mounted on a mainboard via a wireless signal conversion circuit.

[0010] As a preferred embodiment, the wireless module is a LoRa module, the wireless module is connected to the external wireless sensor device signal through a wireless signal, and the converter body is connected to the external wireless sensor device wireless signal through the wireless module. The setting of the wireless module, in conjunction with the wireless signal conversion circuit, can enable the wireless sensor device to be connected to the converter body through a wireless signal.

[0011] As a preferred implementation, the single chip microcomputer is connected to a communication module circuit installed on the mainboard via a remote wired communication circuit.

[0012] As a preferred embodiment, the communication module is a 485 communication module, the communication module is connected to the external host computer signal through a wired signal, the converter body is connected to the external host computer wired signal through the communication module, and the communication module cooperates with the remote wired communication circuit to transmit the information transmitted by each wireless sensor device obtained by the converter body to the host computer through a wired signal.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are as follows: the setting of the wireless signal conversion circuit can connect the wireless module with the single-chip circuit on the mainboard, so that the wireless module can perform data transmission normally, and the remote wired communication circuit can connect the communication module with the single-chip circuit, so that the converter body can perform wired data transmission after receiving the data;

[0014] The setting of wireless module and communication module, together with wireless signal conversion circuit and long-distance wired communication circuit, effectively solves the problem that some locations in coal mines cannot lay cables, and wired transmission cannot be realized, and thus wireless sensor equipment cannot be controlled. At the same time, it can ensure that the converter body can maintain stable data transmission to the host computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a mining intrinsically safe wireless signal converter based on LoRa technology in the utility model.

[0017] Figure 2This is a schematic diagram of the connection between a converter of a mining intrinsically safe wireless signal converter based on LoRa technology, a wireless sensor device and a host computer.

[0018] Figure 3 This is a schematic diagram of a workflow frame of a converter body of a mining intrinsically safe wireless signal converter based on LoRa technology in the utility model for converting wireless signals into wired signals.

[0019] In the figure, 100-converter body, 110-housing, 120-antenna, 130-handle, 140-connector, 150-mainboard, 151-wireless signal conversion circuit, 152-remote wired communication circuit, 160-single chip microcomputer, 170-wireless module, 180-communication module;

[0020] 200-wireless sensor device;

[0021] 300-host computer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a mine intrinsically safe wireless signal converter based on LoRa technology, comprising: a converter body 100, the converter body 100 comprising a shell 110, a back cover and a main board 150, the back side of the shell 110 is fixed with a back cover by screws, and a handle 130 is welded on the upper end of the shell 110;

[0024] An antenna 120 is installed at the left end of the housing 110, and a plurality of connectors 140 are respectively provided on the left and right sides of the housing 110;

[0025] A mainboard 150 is installed inside the housing 110 , a single-chip microcomputer 160 is installed on the upper surface of the mainboard 150 via a chip seat, a wireless module 170 is installed on the upper surface of the mainboard 150 via a wireless module seat, and a communication module 180 is installed on the upper surface of the mainboard 150 via a communication module seat.

[0026] See also Figure 1 to Figure 2 A wireless signal conversion circuit 151 is disposed on the upper surface of the mainboard 150 , and a remote wired communication circuit 152 is disposed on the upper surface of the mainboard 150 .

[0027] The single chip microcomputer 160 is connected to the wireless module 170 mounted on the mainboard 150 via the wireless signal conversion circuit 151 .

[0028] As the first embodiment of the utility model, the setting of the wireless signal conversion circuit 151 can connect the wireless module 170 with the single-chip microcomputer 160 circuit on the mainboard 150, so that the wireless module 170 can perform data transmission normally, and the remote wired communication circuit 152 can connect the communication module 180 with the single-chip microcomputer 160 circuit, which enables the converter body 100 to perform wired data transmission after receiving the data.

[0029] See also Figures 1 to 3 The wireless module 170 is a LoRa module. The wireless module 170 is connected to the external wireless sensor device 200 through wireless signals. The converter body 100 is connected to the external wireless sensor device 200 through the wireless module 170. The setting of the wireless module 170, in conjunction with the wireless signal conversion circuit 151, can enable the wireless sensor device 200 to be connected to the converter body 100 through wireless signals.

[0030] The single chip microcomputer 160 is connected to the communication module 180 installed on the mainboard 150 via the remote wired communication circuit 152 .

[0031] The communication module 180 is a 485 communication module. The communication module 180 is connected to the external host computer 300 through a wired signal. The converter body 100 is connected to the external host computer 300 through the communication module 180. The communication module 180 cooperates with the remote wired communication circuit 152 to transmit the information transmitted by each wireless sensor device 200 obtained by the converter body 100 to the host computer 300 through a wired signal.

[0032] As a second embodiment of the utility model, an external wireless sensor device 200, such as a long-distance wireless laser methane sensor based on LoRa technology (the sensor body (external wireless sensor device 200) includes a front shell 110 and a back cover, a battery, a main board 150 and a wireless signal conversion circuit are arranged inside the front shell 110, an antenna 120 is installed on the front shell 110, a laser methane probe is arranged at the lower part of the front shell 110, an observation window and an alarm buzzer hole are arranged on the front of the front shell 110, an alarm light is arranged above the front shell 110, an aviation socket is arranged on the left side of the front shell 110 for charging, a power switch is arranged on the right side of the front shell 110, a sealing pad is arranged on the back cover, and the sensor is powered by the battery in the front shell 110) the sensor body (external wireless sensor device 200) and the converter body 100 use LoRa wireless communication mode for communication;

[0033] This communication method has a long transmission distance and can realize the collection and transmission of methane signals in places where it is inconvenient to lay cables. The sensor body collects methane concentration data through an external laser methane probe, and transmits it to the wireless module 170 in the converter body 100 through the LoRa wireless transmission technology through wireless signals. After receiving the wireless signal sent by the external wireless sensor device 200, the wireless module 170 transmits the data to the single-chip microcomputer 160 on the main board 150 through the wireless signal conversion circuit 151. The single-chip microcomputer 160 transmits the data to the communication module 180 through the remote wired communication circuit 152, and converts it into a 485 signal and transmits it to the connected host computer 300 through the signal line, which effectively solves the problem that some locations in the coal mine cannot lay cables, and wired transmission cannot be realized, and the wireless sensor device 200 cannot be controlled. At the same time, it can ensure that the converter body 100 can maintain stable data transmission to the host computer 300 (the single-chip microcomputer 160 and the main board 150 mentioned above are not limited to a specific model, and the product models available on the market that meet the use requirements can be used).

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mine-use intrinsically safe wireless signal converter based on LoRa technology, comprising: A converter body (100), characterized in that the converter body (100) comprises a shell (110), a back cover and a main board (150), the back cover is fixed to the rear side of the shell (110) by screws, and a handle (130) is welded to the upper end of the shell (110); An antenna (120) is installed at the left end of the housing (110), and a plurality of connectors (140) are respectively provided on the left and right sides of the housing (110); A mainboard (150) is installed inside the housing (110); a single-chip microcomputer (160) is installed on the upper surface of the mainboard (150) via a chip seat; a wireless module (170) is installed on the upper surface of the mainboard (150) via a wireless module seat; and a communication module (180) is installed on the upper surface of the mainboard (150) via a communication module seat.

2. A mine-use intrinsically safe wireless signal converter based on LoRa technology as claimed in claim 1, characterized in that: A wireless signal conversion circuit (151) is provided on the upper surface of the main board (150), and a remote wired communication circuit (152) is provided on the upper surface of the main board (150).

3. A mine-used intrinsically safe wireless signal converter based on LoRa technology as claimed in claim 2, characterized in that: The single chip microcomputer (160) is connected to a wireless module (170) circuit mounted on the mainboard (150) via a wireless signal conversion circuit (151).

4. A mine-use intrinsically safe wireless signal converter based on LoRa technology as claimed in claim 3, characterized in that: The wireless module (170) is a LoRa module, the wireless module (170) is connected to an external wireless sensor device (200) signal via a wireless signal, and the converter body (100) is connected to an external wireless sensor device (200) wirelessly via the wireless module (170).

5. A mine-used intrinsically safe wireless signal converter based on LoRa technology as claimed in claim 2, characterized in that: The single chip microcomputer (160) is connected to a communication module (180) circuit mounted on the mainboard (150) via a remote wired communication circuit (152).

6. A mine-use intrinsically safe wireless signal converter based on LoRa technology as claimed in claim 5, characterized in that: The communication module (180) is a 485 communication module, and the communication module (180) is connected to an external host computer (300) via a wired signal. The converter body (100) is connected to an external host computer (300) via a wired signal via the communication module (180).

Images