Mining wireless radar sensor

Abstract

The utility model relates to a mining wireless radar sensor, which relates to the technical field of sensors and comprises a stainless steel shell. An acrylic window, a wireless antenna and a power supply are arranged on the stainless steel shell, an object sensing element is arranged in the stainless steel shell, and a probe circuit board and a main circuit board are further arranged in the stainless steel shell; the probe circuit board and the main circuit board are in circuit connection with the sensing element, a ZIGBEE wireless sensor is further arranged in the stainless steel shell, and the ZIGBEE wireless sensor is in circuit connection with the main circuit board. The radar sensing element emits detection waves to sense the movement of materials or objects on the coal mine belt conveyor, the circuit board connected with the radar sensing element in the shell processes, amplifies and shapes the detection waves into pulse waveforms, and a chip on the main circuit board identifies the pulse waveforms and sends out signals through the wireless sensor. The non-contact accurate identification of the moving materials on the conveyor is realized, the detection accuracy and timeliness are improved, and the quality of coal mine raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a wireless radar sensor for mining. Background Art

[0002] In the coal mine underground transportation process system in the prior art, the latter process needs to continuously confirm whether there are raw materials such as ore being transported on the conveyor belt to decide whether to start the process, such as spraying and dust reduction. If it is not handled in time, it is very easy to cause the quality of raw materials such as ore, especially in the underground transportation tunnels and transfer points of coal mines. If manual inspection is used, on the one hand, it is time-consuming and labor-intensive work with a low safety factor, and on the other hand, manual inspection is also prone to accidental errors. Utility Model Content

[0003] In order to solve the technical problems mentioned in the background technology, the utility model provides a wireless radar sensor for mining.

[0004] The utility model adopts the following technical solution: a mine-used wireless radar sensor, comprising a stainless steel shell; the stainless steel shell is provided with an acrylic window, a wireless antenna, a power supply and a switch assembly;

[0005] An object sensing element is arranged in the stainless steel housing to sense the movement of materials on the conveyor;

[0006] The acrylic window is used for the sensing element to emit detection waves;

[0007] The wireless antenna is used to send and receive wireless signals;

[0008] A probe circuit board and a main circuit board are also arranged in the stainless steel housing; the probe circuit board and the main circuit board are connected to the sensing element circuit; the probe circuit board is used to collect the signal of the sensing element, and after amplification and shaping, outputs a regular pulse waveform, and the chip in the main circuit board recognizes the pulse waveform signal to determine whether there is moving material;

[0009] A ZIGBEE wireless sensor is also arranged in the stainless steel shell. The ZIGBEE wireless sensor is connected to the main circuit board circuit and is used to receive a communication signal sent by the main circuit board to send a signal to the upper computer indicating whether there is material movement on the conveyor.

[0010] Furthermore, a radar light tube is arranged on the stainless steel shell; the radar light tube is connected to the main circuit board circuit and indicates different colors depending on whether a moving material state is detected.

[0011] Furthermore, the sensing element includes a radar wave generator and a radar wave receiver; the radar wave generator regularly and intermittently sends radar signals to the transport aircraft; and the radar wave receiver correspondingly receives the returned radar signals.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] The wireless radar sensor for mining designed by the utility model emits detection waves through the radar sensing element to sense the movement of materials or objects on the coal mine belt conveyor. The circuit board connected to the radar sensing element in the shell processes, amplifies and shapes the pulse waveform, and then the chip on the main circuit board recognizes the pulse waveform and sends the signal through the wireless sensor. It realizes non-contact and accurate identification of moving materials on the conveyor, improves the accuracy and timeliness of detection, and improves the quality of coal mine raw materials. The device can be conveniently installed in the underground transportation lanes and transfer points of coal mines to realize non-contact detection, and can be repeatedly used, safe and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model mine-used wireless radar sensor;

[0015] Figure 2 This is a cross-sectional view of the AA surface of the wireless radar sensor for mining of the utility model.

[0016] in:

[0017] 1-stainless steel shell, 2-acrylic window, 3-wireless antenna, 4-power supply, 5-probe circuit board, 6-main circuit board, 7-radar lamp tube, 8-radar wave generator, 9-radar wave receiver, 10-switch assembly. DETAILED DESCRIPTION

[0018] In order to facilitate those skilled in the art to understand the technical solution of the utility model, further description is now made with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model.

[0019] In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0020] like Figure 1-2As shown, a wireless radar sensor for mining in this embodiment includes a stainless steel shell 1, an acrylic window 2, a wireless antenna 3, a power supply 4 and a switch assembly 10 are provided on the stainless steel shell 1, and an object sensing element is provided in the stainless steel shell 1 to sense the movement of materials on the conveyor. In specific implementation, the sensing element includes a radar wave generator 8 and a radar wave receiver 9; the radar wave generator 8 regularly and intermittently sends radar signals to the conveyor. The radar wave receiver 9 receives the returned radar signal in response. The acrylic window 2 is used for the sensing element to emit detection waves, and the wireless antenna 3 is used to send and receive wireless signals.

[0021] In this embodiment, a probe circuit board 5 and a main circuit board 6 are also provided in the stainless steel shell 1. The probe circuit board 5 and the main circuit board 6 are connected to the sensing element circuit. The probe circuit board 5 is used to collect the signal of the sensing element, and output a regular pulse waveform after amplification and shaping. The chip in the main circuit board 6 recognizes the pulse waveform signal to determine whether there is moving material.

[0022] This embodiment uses an operational amplifier in the signal processing circuit to amplify and filter the signal. The active filter has high input impedance, extremely low output impedance, good isolation performance, can better process microwave radar signals, further improve the stability and anti-interference performance of the product, and there is no impedance matching requirement between each stage. The latter stage uses an operational amplifier as a comparator to convert the signal into a digital signal with stronger anti-interference ability and input it to the single-chip microcomputer for processing.

[0023] A ZIGBEE wireless sensor is also provided in the stainless steel housing 1, and is connected to the main circuit board 6 circuit to receive the communication signal sent by the main circuit board 6, so as to send a signal to the upper computer whether there is material movement on the conveyor. A radar lamp 7 is provided on the stainless steel housing 1, and is connected to the main circuit board 6 circuit to indicate different colors when a moving material is detected.

[0024] In summary, the wireless radar sensor for mining designed by the utility model transmits detection waves through the radar sensing element to sense the movement of materials or objects on the coal mine belt conveyor. The circuit board connected to the radar sensing element in the shell processes, amplifies and shapes the pulse waveform, and then the chip on the main circuit board recognizes the pulse waveform and sends the signal through the wireless sensor. It can realize non-contact and accurate identification of moving materials on the conveyor, improve the accuracy and timeliness of detection, and improve the quality of coal mine raw materials. The device can be conveniently installed in the underground transportation lanes and transfer points of coal mines to realize non-contact detection, and can be repeatedly used, which is safe and effective.

[0025] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A wireless radar sensor for mining, characterized in that: It comprises a stainless steel housing (1); the stainless steel housing (1) is provided with an acrylic window (2), a wireless antenna (3), a power supply (4) and a switch assembly (10); An object sensing element is arranged in the stainless steel housing (1) to sense the movement of materials on the conveyor; The acrylic window (2) is used for the sensing element to emit detection waves; The wireless antenna (3) is used to send and receive wireless signals; A probe circuit board (5) and a main circuit board (6) are also arranged in the stainless steel housing (1); the probe circuit board (5) and the main circuit board (6) are connected to the sensing element circuit; the probe circuit board (5) is used to collect the signal of the sensing element, and after amplification and shaping, output a regular pulse waveform, and the chip in the main circuit board (6) recognizes the pulse waveform signal to determine whether there is moving material; A ZIGBEE wireless sensor is also arranged in the stainless steel housing (1). The ZIGBEE wireless sensor is connected to the main circuit board (6) circuit and is used to receive a communication signal sent by the main circuit board (6) so as to send a signal to the upper computer indicating whether there is material movement on the conveyor.

2. The mine-used wireless radar sensor according to claim 1, characterized in that: A radar lamp tube (7) is arranged on the stainless steel housing (1); the radar lamp tube (7) is connected to the main circuit board (6) in circuit and indicates different colors when a moving material state is detected.

3. The mine-used wireless radar sensor according to claim 2, characterized in that: The sensing element comprises a radar wave generator (8) and a radar wave receiver (9); the radar wave generator (8) regularly and intermittently sends radar signals to the transport aircraft; and the radar wave receiver (9) correspondingly receives the returned radar signals.

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