Wireless remote control start-stop system for mining feed switch

Abstract

The utility model belongs to the technical field of feed switches, and particularly discloses a wireless remote control start-stop system for a mining feed switch, which comprises a feed switch body, a wireless remote controller, a wireless receiving module, a signal decoding and driving module and a relay, and is characterized in that the wireless receiving module is electrically connected with an SPI (Serial Peripheral Interface) of the signal decoding and driving module; the signal decoding and driving module is electrically connected with the relay, the relay is electrically connected with a closing coil and an opening coil of the feeder switch body, the wireless receiving module and the wireless remote controller have the same wireless radio frequency, and a key module of the wireless remote controller comprises a start key, a stop key and an emergency stop key. The problems that a large amount of time and manpower are consumed, efficiency is low and potential safety hazards exist when a feeder switch is started and stopped manually are solved. According to the utility model, the feed switch is switched on and switched off through the wireless remote controller, the operation efficiency is obviously improved, meanwhile, special personnel do not need to go to the switch for operation, and the risk of accidents is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power supply switch technology, specifically to a wireless remote control start / stop system for a mining power supply switch. Background Technology

[0002] In the mining environment, the KJZ-400 / 1140 (660V) feeder switch, as an important power control device, undertakes the critical task of controlling the on / off state of underground power supply lines. Traditionally, feeder switch operation is mainly manual, requiring operators to be near the switch to perform closing and opening operations.

[0003] However, the mine environment is complex, and manual operation not only cannot control the power supply switch in a timely and rapid manner, but also consumes a lot of time and manpower, resulting in low efficiency. Moreover, operators face safety hazards such as gas, dust and other flammable and explosive substances, as well as roof collapse, which can easily lead to accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a wireless remote control start / stop system for mine power supply switches, so as to solve the problems of manual start / stop of the power supply switch body, which consumes a lot of time and manpower, is inefficient, and poses safety hazards.

[0005] To achieve the above objectives, the basic solution provided by this utility model is as follows: a wireless remote control start / stop system for a mine power supply switch, comprising a power supply switch body, a wireless remote controller, a wireless receiving module, a signal decoding and driving module, and a relay. The wireless receiving module is electrically connected to the SPI interface of the signal decoding and driving module, the signal decoding and driving module is electrically connected to the relay, and the relay is electrically connected to the closing and opening coils of the power supply switch body. The wireless receiving module and the wireless remote controller use the same wireless radio frequency. The button module of the wireless remote controller includes a start button, a stop button, and an emergency stop button.

[0006] The working principle of this utility model is as follows: A wireless remote control start / stop system for a mine power supply switch. When it is necessary to close the power supply switch body, the operator presses the start button of the wireless remote control from a safe position. After receiving the button signal, the microcontroller of the wireless remote control generates a data packet containing the start command and sends the signal out through the wireless radio frequency transmission module. After receiving the signal, the wireless radio frequency receiving module decodes and verifies the signal through the signal decoding and driving module. If the verification is successful, the signal decoding and driving module drives the relay to act, energizing the closing coil of the power supply switch body to realize the closing operation.

[0007] When it is necessary to open the feeder switch body, the operator presses the stop button on the wireless remote control. After receiving the button signal, the microcontroller of the wireless remote control generates a data packet containing the start command and sends the signal out through the wireless radio frequency transmission module. After receiving the signal, the wireless radio frequency receiving module decodes and verifies the signal through the signal decoding and driving module. If the verification is successful, the signal decoding and driving module drives the relay to act. The relay cuts off the power supply to the closing coil of the feeder switch body, causing the feeder switch body to open.

[0008] In case of an emergency, the operator presses the emergency stop button on the wireless remote control. The wireless remote control immediately sends an emergency stop command data packet, which has the highest priority. After receiving the emergency stop command, the wireless receiving module quickly drives the relay to cut off the power supply to the closing coil of the feeder switch body. Regardless of the current state of the feeder switch body, it will immediately trip.

[0009] The beneficial effects of this utility model are as follows: operators no longer need to manually operate the feeder switch near it. They can conveniently close and open the feeder switch from a certain distance using a wireless remote control, which greatly saves time and significantly improves operating efficiency. At the same time, it reduces the need for manual on-site operation, eliminating the need to arrange for dedicated personnel to operate the switch. Operators are kept away from areas near the feeder switch that may contain flammable and explosive substances such as gas and dust, as well as areas with safety hazards such as roof collapse. This avoids direct exposure of operators to dangerous environments, effectively reducing the risk of accidents and ensuring personnel safety.

[0010] Option 2, which is a preferred option of the basic option, is that the wireless receiving module is electrically connected to a fault detection and feedback module, which is electrically connected to the closing and opening coils of the power supply switch body. The fault detection and feedback module can monitor the working status of the closing and opening coils of the power supply switch body in real time. When a short circuit or open circuit occurs in the coil, the module can quickly detect it and feed back the fault information to the operator.

[0011] Option 3, a preferred option of the basic option, is that the wireless receiving module is equipped with a metal shielding cover. The metal shielding cover provides good electromagnetic shielding for the wireless receiving module. In the complex electromagnetic environment of the mine, various electrical devices will generate a large number of electromagnetic interference signals. The metal shielding cover can block these interference signals from entering the wireless receiving module, ensuring that the wireless receiving module can stably and accurately receive signals from the wireless remote control, thereby improving the communication reliability of the wireless remote control start-stop system.

[0012] Option 4, a preferred option of the basic option, includes filter capacitors and inductors on the power input and signal transmission lines of the wireless receiving module and the wireless remote control. These filter capacitors and inductors effectively filter out noise in the power supply and high-frequency interference signals during signal transmission.

[0013] Option 5, a preferred option of the basic option, includes a CRC16 check chip in the signal decoding and driving module. When the wireless receiving module receives the signal sent by the wireless remote control, the signal decoding and driving module processes the signal. The CRC16 check chip performs cyclic redundancy check on the received signal, which can quickly and accurately detect whether an error has occurred during the transmission process. If the check finds an error, the system will refuse to perform the corresponding operation and can take measures such as retransmitting the signal to ensure the accuracy of the signal.

[0014] Option 6, a preferred option of the basic scheme, includes an encryption chip in the wireless remote control and a decryption chip in the wireless receiving module. The encryption chip in the wireless remote control encrypts the control signals emitted by the remote control, transmitting the signals in ciphertext. The decryption chip on the wireless receiving module can decrypt the ciphertext signal and restore it to the original control signal after receiving the signal. This encryption and decryption mechanism greatly improves the security of the system. Attached Figure Description

[0015] Figure 1 This is a flowchart of a wireless remote control start / stop system for a mining power supply switch according to this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments:

[0017] The reference numerals in the accompanying drawings include: 1. Power supply switch body; 2. Wireless remote control; 3. Wireless receiving module; 4. Signal decoding and driving module; 5. Relay; 6. Fault detection and feedback module.

[0018] like Figure 1The following describes a wireless remote control start / stop system for a mine power supply switch: The system includes a power supply switch body 1, a wireless remote controller 2, a wireless receiving module 3, a signal decoding and driving module 4, and a relay 5. The wireless receiving module 3 is electrically connected to the SPI interface of the signal decoding and driving module 4, and the signal decoding and driving module 4 is electrically connected to the relay 5. The signal decoding and driving module 4 contains a CRC16 check chip. The relay 5 is electrically connected to the closing and opening coils of the power supply switch body 1. The wireless receiving module 3 and the wireless remote controller 2 operate at the same radio frequency of 2.4 GHz. The wireless receiving module 3 is electrically connected to a fault detection and feedback module. Block 6, the fault detection and feedback module 6 is electrically connected to the closing and opening coils of the power supply switch body 1. The wireless receiving module 3 is equipped with a metal shield. The power input and signal transmission lines of the wireless receiving module 3 and the wireless remote control 2 are equipped with filter capacitors and inductors. The wireless remote control 2 is electrically connected to an encryption chip, which uses the AES encryption algorithm to encrypt the control commands. The encryption key is stored and managed through the encryption chip. The wireless receiving module 3 is electrically connected to a decryption chip. After receiving the encrypted signal, the wireless receiving module 3 uses the same key to decrypt it, ensuring that only authorized wireless remote control devices can control the power supply switch body 1.

[0019] Wireless Remote Control 2 is an ASK industrial universal remote control, model AK-K220301. Its operation button module includes a start button, a stop button, an emergency stop button, and a function confirmation button. It is powered by a rechargeable lithium battery with a capacity of 2000mAh, allowing for over 8 hours of continuous operation on a full charge. A power management circuit is also included to manage battery charging and discharging and monitor battery level. To ensure the accuracy and reliability of wireless communication, a fixed-length data packet format is used, with each data packet containing a synchronization header, command code, checksum, and data trailer.

[0020] The implementation method of this embodiment is as follows: When it is necessary to close the power supply switch body 1, the operator presses the start button on the wireless remote control 2 from a safe position. After receiving the button signal, the microcontroller of the wireless remote control 2 generates a data packet containing the start command according to the communication protocol and sends the signal out through the wireless radio frequency transmission module. After receiving the signal, the wireless radio frequency receiving module of the wireless receiving module 3 decodes and verifies the signal through the signal decoding and driving module 4. If the verification is successful, the signal decoding and driving module 4 drives the relay 5 to operate, so that the closing coil of the power supply switch body 1 is energized, and the closing operation is realized. At the same time, the fault detection and feedback module 6 of the wireless receiving module 3 feeds back the closing status information of the power supply switch body 1 to the wireless remote control 2 through the wireless receiving module 3. After receiving the feedback information, the wireless remote control 2 displays the status of the power supply switch body 1 being started on its display screen.

[0021] When it is necessary to open the power supply switch body 1, the operator presses the stop button on the wireless remote control 2. After receiving the button signal, the microcontroller of the wireless remote control 2 generates a data packet containing the start command according to the communication protocol and sends the signal out through the wireless radio frequency transmission module. After receiving the signal, the wireless radio frequency receiving module of the wireless receiving module 3 decodes and verifies the signal through the signal decoding and driving module 4. If the verification is successful, the signal decoding and driving module 4 drives the relay 5 to operate. The relay 5 cuts off the power supply to the closing coil of the power supply switch body 1, causing the power supply switch body 1 to open. At the same time, the fault detection and feedback module 6 of the wireless receiving module 3 feeds back the opening status information of the power supply switch body 1 to the wireless remote control 2 through the wireless receiving module 3. After receiving the feedback information, the wireless remote control 2 displays the status of the power supply switch body 1 as closed on its display screen.

[0022] In case of an emergency, the operator presses the emergency stop button on the wireless remote control 2. The wireless remote control 2 immediately sends an emergency stop command data packet, which has the highest priority. After receiving the emergency stop command, the wireless receiving module 3 quickly drives the relay 5 to cut off the power supply to the closing coil of the feeder switch body 1. Regardless of the current state of the feeder switch body 1, it will immediately trip. At the same time, the wireless receiving module 3 feeds back the emergency stop status information to the wireless remote control 2, and the display screen of the wireless remote control 2 shows the prompt.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A wireless remote control start / stop system for a mine power supply switch, characterized in that, The device includes a power supply switch body (1), a wireless remote controller (2), a wireless receiving module (3), a signal decoding and driving module (4), and a relay (5). The wireless receiving module (3) is electrically connected to the SPI interface of the signal decoding and driving module (4). The signal decoding and driving module (4) is electrically connected to the relay (5). The relay (5) is electrically connected to the closing and opening coils of the power supply switch body (1). The wireless receiving module (3) and the wireless remote controller (2) have the same wireless radio frequency. The button module of the wireless remote controller (2) includes a start button, a stop button, and an emergency stop button.

2. The wireless remote control start / stop system for a mine power supply switch according to claim 1, characterized in that, The wireless receiving module (3) is electrically connected to the fault detection and feedback module (6), and the fault detection and feedback module (6) is electrically connected to the closing and opening coils of the power supply switch body (1).

3. The wireless remote control start / stop system for a mine power supply switch according to claim 1, characterized in that, The wireless receiving module (3) is equipped with a metal shield.

4. A wireless remote control start / stop system for a mine power supply switch according to claim 1, characterized in that, The power input and signal transmission lines of the wireless receiver module (3) and the wireless remote controller (2) are equipped with filter capacitors and inductors.

5. A wireless remote control start / stop system for a mine power supply switch according to claim 1, characterized in that, The signal decoding and driving module (4) is equipped with a CRC16 verification chip.

6. A wireless remote control start / stop system for a mine power supply switch according to claim 1, characterized in that, The wireless remote controller (2) is electrically connected to an encryption chip, and the wireless receiving module (3) is electrically connected to a decryption chip.

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