Alarm device and control method thereof

Abstract

The invention relates to the technical field of alarm equipment, in particular to an alarm device and a control method thereof. A control panel is mounted at the fixed end of the brushless motor; the control panel is fixedly connected with a display screen; the output end of the brushless motor is provided with a warning assembly. The brushless motor is connected with a magnetic encoder; the control panel comprises a signal transceiving module; the control panel is electrically connected with the brushless motor, the display screen and the magnetic encoder. Compared with the prior art, the display screen can display the alarm information, and the alarm information which does not need to be processed is cached; alarm information can be browsed and eliminated on a display screen through a brushless motor in a foc control mode. Through the signal receiving and transmitting module of the control panel, linkage of a far end and a near end can be realized, subsequent tracking processing is facilitated, and alarm information omission is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of alarm equipment, and in particular to an alarm device and a control method thereof. Background Art

[0002] Underground alarm devices are important equipment to ensure safe production in mines, such as gas concentration alarm devices and water level alarm devices.

[0003] The gas concentration alarm device is used to monitor the concentration of various harmful gases (such as methane, carbon monoxide, hydrogen sulfide, etc.) underground. When the concentration of harmful gases exceeds the safety threshold, an alarm can be issued in time. For example, the gas alarm device will issue an audible and visual alarm when the gas concentration reaches 1% (the alarm setting value of different mines may vary depending on specific safety standards). In areas where there is a risk of water accumulation underground (such as goafs, near drainage systems, etc.), the water level alarm device can monitor water level changes. Once the water level rises to a dangerous height, an alarm signal will be issued.

[0004] The above-mentioned alarm devices are mostly light + sound alarms. For alarm situations that do not require emergency treatment, such as abnormal monitoring systems issued by mines, abnormal data quality, untimely information updates or human error, the alarm will remain in an alarm state after it is issued. If the alarm state is not eliminated, the alarm will continue, interfering with normal work order; if the alarm state is eliminated manually, it is easy to miss the tracking, processing and coordination of the alarm information after elimination. A set of alarm devices that do not require emergency treatment are needed to improve management efficiency. Summary of the invention

[0005] In view of the problem that the alarm cannot be eliminated in time when no emergency treatment is required and the subsequent tracking of the alarm information is easily missed after manual elimination, the present invention provides an alarm device and a control method thereof.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is: An alarm device includes a brushless motor; a control board is installed at the fixed end of the brushless motor; a display screen is fixedly connected to the control board; a warning component is installed at the output end of the brushless motor; the brushless motor is connected to a magnetic encoder; the control board includes a signal transceiver module; the control board is electrically connected to the brushless motor, the display screen and the magnetic encoder. The display screen can display alarm information and cache alarm information that does not need to be processed; the brushless motor uses the FOC control method to realize the reading and elimination of the alarm information on the display screen. The signal transceiver module of the control board can realize the linkage between the far end and the near end, which is convenient for subsequent tracking and processing and avoids the omission of alarm information.

[0007] Preferably, the control panel further includes a pressure sensing module, which is arranged in conjunction with the fixed end of the brushless motor. The brushless motor can be pressed by pressing the warning component, so that the pressure sensing module on the control panel obtains a pressure signal, and the control panel increases the display menu control mode through the pressure signal.

[0008] Preferably, the brushless motor is arranged between the control board and the display screen; the middle of the control board is connected to the middle of the bottom surface of the display screen through a connector; the connector runs through the brushless motor, which can ensure that the position of the display screen relative to the control board is fixed for easy viewing.

[0009] Preferably, a mounting piece is fixedly installed at the output end of the brushless motor; the mounting piece is installed between the brushless motor and the display screen; the connecting piece is arranged through the mounting piece; and the warning component is fixedly connected to the mounting piece. The arrangement of the mounting piece facilitates the installation of the warning component.

[0010] Preferably, the warning component comprises a rotating shell; a receiving cavity is arranged in the rotating shell; a mounting piece is fixedly connected to the inner wall of the rotating shell; and a brushless motor, a mounting piece and a display screen are arranged in the receiving cavity. The rotating shell can provide protection for the brushless motor, the mounting piece and the display screen.

[0011] Preferably, a glass is arranged outside the display screen, the glass is fixed on the rotating housing, and the glass seals the accommodating cavity at one end of the display screen, and the glass provides protection for the display screen.

[0012] Preferably, the connector is in the shape of a round tube as a whole; one end of the connector is fixed to the control board, and the other end of the connector passes through the brushless motor and the mounting member and is fixed to the middle of the bottom surface of the display screen; the magnetic encoder is arranged in the connector, and the magnetic encoder is fixed to the control board. The arrangement of the connector ensures that the display screen is fixed to the control board and that the brushless motor rotates, making it convenient to view the display screen.

[0013] A control method for an alarm device, the control method is applied to the above-mentioned alarm device, adopts foc control (Field-Oriented Control) of a brushless motor, in the warning state, when a signal transceiver module receives a warning signal, then the control board determines whether it belongs to the warning state, if so, the control board controls the brushless motor to rotate; if not, the control board controls the brushless motor to be stationary.

[0014] Preferably, the manual rotation control includes the following steps: S1. Manually rotate the warning component to drive the brushless motor to rotate to the set angle; S2, the control board determines the rotation direction of the brushless motor through the magnetic encoder; if it rotates clockwise, it goes to step S3; if it rotates counterclockwise, it goes to step S4; S3, the control panel determines whether the menu displayed on the display screen is in an open state; if so, it enters the next level menu item; if not, it ignores the operation; S4, the control panel determines whether the menu displayed on the display screen is in an open state; if so, it enters the previous menu item; if not, it ignores the operation; Preferably, the manual pressing control includes the following steps: S5. Manually press the warning component to drive the brushless motor to press down to the set force; S6, the control panel determines whether the pressing time reaches the threshold through the pressure sensing module, if yes, it goes to S7; if no, it ignores the operation; S7. The control panel determines whether the display screen is in a menu-opening state; if so, the menu item is confirmed; if not, the operation menu is opened.

[0015] It can be seen from the above technical solutions that the advantages of the present invention include: the display screen can display alarm information and cache the alarm information that does not need to be processed; the alarm information can be flipped and eliminated on the display screen by using the brushless motor using the FOC control method. The signal transceiver module of the control board can realize the linkage between the far end and the near end, which is convenient for subsequent tracking and processing and avoids the omission of alarm information. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the control panel of the present invention.

[0020] Figure 4 This is a control flow chart of the present invention in the early warning state.

[0021] Figure 5 This is a flow chart of the manual rotation control of the present invention.

[0022] Figure 6 This is a flow chart of the manual pressing control of the present invention.

[0023] Description of main reference numerals 1-brushless motor, 2-control board, 3-display screen, 4-magnetic encoder, 5-connector, 6-mounting part, 7-rotating housing, 8-glass, 9-pressure sensing module; 701-accommodating cavity. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] like Figure 1-3 As shown, an alarm device includes a brushless motor 1; a control board 2 is installed at the fixed end of the brushless motor 1; a magnetic encoder 4 is connected to the brushless motor 1; the middle of the control board 2 is connected to the middle of the bottom surface of the display screen 3 through a connector 5; the brushless motor 1 is arranged between the control board 2 and the display screen 3; the connector 5 penetrates the brushless motor 1 and can ensure that the position of the display screen 3 is fixed relative to the control board 2, which is convenient for viewing. The connector 5 is in a round tube shape as a whole; one end of the connector 5 is fixed on the control board 2, and the other end of the connector 5 penetrates the brushless motor 1 and is fixed to the middle of the bottom surface of the display screen 3; the magnetic encoder 4 is arranged in the connector 5, and the magnetic encoder 4 is fixed on the control board 2.

[0026] The output end of the brushless motor 1 is fixedly mounted with a mounting member 6; the mounting member 6 is installed between the brushless motor 1 and the display screen 3; the connecting member 5 is arranged through the mounting member 6; the warning component is fixedly connected to the mounting member 6; the control board 2 includes a signal transceiver module; the control board 2 is electrically connected to the brushless motor 1, the display screen 3 and the magnetic encoder 4. The control board 2 also includes a pressure sensing module 9, which includes four pressure sensors, and the four pressure sensors are evenly distributed on the control board 2 along the circumferential direction with the connecting member 5 as the center; the pressure sensing module 9 is installed on the control board 2 below the fixed end of the brushless motor 1. The brushless motor 1 can be pressed by pressing the warning component, so that the pressure sensing module 9 on the control board 2 obtains a pressure signal, and the control board 2 increases the menu control mode of the display screen 3 through the pressure signal.

[0027] In the above configuration, the warning component includes a rotating housing 7; a receiving cavity 701 is provided in the rotating housing 7; the inner wall of the rotating housing 7 is fixedly connected to the mounting member 6; the brushless motor 1, the mounting member 6 and the display screen 3 are arranged in the receiving cavity 701. The rotating housing 7 can provide protection for the brushless motor 1, the mounting member 6 and the display screen 3. A glass 8 is provided on the outside of the display screen 3; the glass 8 is fixed on the rotating housing 7, and the glass 8 closes the receiving cavity 701 at one end of the display screen 3. The glass 8 provides protection for the display screen 3.

[0028] like Figure 4-6 As shown, a control method for an alarm device is applied to the above-mentioned alarm device, and adopts foc control (Field-Oriented Control) of a brushless motor 1, also known as vector control (Vector Control), which is a technology that uses a variable-frequency drive (VFD) to control a three-phase AC motor.

[0029] In the warning state, when the signal transceiver module receives the warning signal, the control board 2 determines whether it is a warning state. If so, the control board 2 controls the brushless motor 1 to rotate; if not, the control board 2 controls the brushless motor 1 to stop.

[0030] Manual rotation control includes the following steps: S1, manually rotating the rotating housing 7 of the warning component drives the brushless motor 1 to rotate to a set angle; S2, the control board 2 determines the rotation direction of the brushless motor 1 through the magnetic encoder 4; if it rotates clockwise, it goes to step S3; if it rotates counterclockwise, it goes to step S4; S3, the control panel 2 determines whether the menu displayed on the display screen 3 is in an open state; if so, it enters the next level menu item; if not, it ignores the operation; S4, the control panel 2 determines whether the menu displayed on the display screen 3 is in an open state; if so, it enters the previous menu item; if not, it ignores the operation; When manually pressing the control, the following steps are included: S5, manually pressing the rotating housing 7 of the warning component to drive the brushless motor 1 to press down to a set force; S6, the control panel 2 determines whether the pressing time reaches the threshold through the pressure sensing module 9, if yes, then enter S7; if no, ignore the operation; S7, the control panel 2 determines whether the display screen 3 is in the menu opening state; if so, the menu item is confirmed; if not, the operation menu is opened.

[0031] The display screen 3 can display alarm information and cache the alarm information that does not need to be processed; the brushless motor 1 uses the foc control method to realize the reading and elimination of the alarm information on the display screen 3. The signal transceiver module of the control board 2 can realize the linkage between the far end and the near end, which is convenient for subsequent tracking and processing to avoid missing alarm information.

[0032] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An alarm device, characterized in that: The invention comprises a brushless motor (1); a control panel (2) is installed at a fixed end of the brushless motor (1); a display screen (3) is fixedly connected to the control panel (2); a warning component is installed at the output end of the brushless motor (1); the brushless motor (1) is connected to a magnetic encoder (4); the control panel (2) comprises a signal transceiver module; and the control panel (2) is electrically connected to the brushless motor (1), the display screen (3) and the magnetic encoder (4).

2. The alarm device according to claim 1, characterized in that: The control panel (2) further comprises a pressure sensing module (9); the pressure sensing module (9) is arranged in cooperation with the fixed end of the brushless motor (1).

3. The alarm device according to claim 2, characterized in that: The brushless motor (1) is arranged between the control board (2) and the display screen (3); the middle part of the control board (2) is connected to the middle part of the bottom surface of the display screen (3) via a connecting piece; the connecting piece is arranged through the brushless motor (1).

4. The alarm device according to claim 3, characterized in that: A mounting member (6) is fixedly mounted on the output end of the brushless motor (1); the mounting member (6) is mounted between the brushless motor (1) and the display screen (3); the connecting member (5) is arranged through the mounting member (6); and a warning component is fixedly connected to the mounting member (6).

5. The alarm device according to claim 4, characterized in that: The warning component comprises a rotating housing (7); a receiving chamber (701) is arranged in the rotating housing (7); the inner wall of the rotating housing (7) is fixedly connected to a mounting member (6); and the brushless motor (1), the mounting member (6) and the display screen (3) are arranged in the receiving chamber (701).

6. The alarm device according to claim 5, characterized in that: Glass (8) is arranged on the outside of the display screen (3); the glass (8) is fixed on the rotating housing (7), and the glass (8) seals the accommodating cavity (701) at one end of the display screen (3).

7. The alarm device according to claim 4, characterized in that: The connecting piece (5) is in the shape of a circular tube as a whole; one end of the connecting piece (5) is fixed on the control board (2), and the other end of the connecting piece (5) passes through the brushless motor (1) and the mounting piece (6) and is fixed on the middle part of the bottom surface of the display screen (3); the magnetic encoder (4) is arranged in the connecting piece (5), and the magnetic encoder (4) is fixed on the control board (2).

8. A method for controlling an alarm device, characterized in that: The control method is applied to the alarm device as claimed in any one of claims 2 to 7, using the FOC control of the brushless motor (1). In the warning state, when the signal transceiver module receives the warning signal, the control board (2) determines whether it is in the warning state. If so, the control board (2) controls the brushless motor (1) to rotate; if not, the control board (2) controls the brushless motor (1) to be stationary.

9. The control method according to claim 8, characterized in that: Manual rotation control includes the following steps: S1, manually rotating the warning component to drive the brushless motor (1) to rotate to a set angle; S2, the control board (2) determines the rotation direction of the brushless motor (1) through the magnetic encoder (4); if it rotates clockwise, it proceeds to step S3; if it rotates counterclockwise, it proceeds to step S4; S3, the control panel (2) determines whether the menu displayed on the display screen (3) is in an open state; if so, entering the next level menu item; if not, ignoring the operation; S4. The control panel (2) determines whether the menu displayed on the display screen (3) is in an open state; if so, the control panel enters the previous menu item; if not, the control panel ignores the operation.

10. The control method according to claim 8, characterized in that: When the control is manually pressed, The following steps are involved: S5, manually pressing the warning component to drive the brushless motor (1) to press down to a set force; S6, the control panel (2) determines whether the pressing time reaches the threshold through the pressure sensing module (9), and if so, enters S7; if not, ignores the operation; S7, the control panel (2) determines whether the display screen (3) is in a menu opening state; if so, confirms the menu item; if not, opens the operation menu.

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