CN112866829A - LPC 1768-based underground belt monitoring and voice fusion system - Google Patents
LPC 1768-based underground belt monitoring and voice fusion system Download PDFInfo
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- CN112866829A CN112866829A CN202110032958.9A CN202110032958A CN112866829A CN 112866829 A CN112866829 A CN 112866829A CN 202110032958 A CN202110032958 A CN 202110032958A CN 112866829 A CN112866829 A CN 112866829A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses an underground belt monitoring and voice fusion system based on LPC1768, which comprises a PLC, a central control module, a power module, a storage module, a communication module, a nixie tube display module, a data acquisition module and a voice module. The system takes LPC1768FBD100 as a main control chip, VS1063 as an audio coding and decoding chip and a CAN bus technology as a communication core technology, realizes the function of underground voice communication, collects the data of a protection sensor along a belt, transmits the collected data to a control center, and realizes the function of underground belt transportation protection. The system adopts the PLC as a control core, and the PLC is communicated with the single chip microcomputer, and the circuit of the single chip microcomputer is used for controlling the communication, so that the fault location can be realized quickly, the fault can be removed conveniently and quickly, the structure of the transportation system is simplified, the resources are saved, and the later maintenance and overhaul are facilitated.
Description
Technical Field
The invention relates to the field of integrated circuit control systems, in particular to an underground belt monitoring and voice fusion system based on LPC 1768.
Background
Along with the development of economy in China, more and more energy is needed, coal is a non-renewable energy source, and since the coal is excavated and exploited, the coal has become a main energy source in China. In the daily mining process of coal, an underground belt transportation system is the most important part, and mainly transports excavated materials such as coal mines to the ground.
The underground belt transportation system mainly comprises a belt monitoring system and a voice communication system, and the conventional underground belt monitoring system and the voice communication system are two separated systems. For a belt transport system, considering the severe working environment under a mine, a belt conveyor often breaks down in the transport process, so that sensors are generally required to be installed along the belt conveyor for monitoring the normal transport of a protective belt, if the protective sensors along the line detect that the belt conveyor breaks down, signals are sent to a monitoring substation, then the monitoring substation transmits the signals to a monitoring master station, and the monitoring master station controls the belt conveyor according to received data; for a voice communication system, because the belt conveyor frequently breaks down, real-time voice communication is particularly important, real-time communication can be facilitated for workers during maintenance, and the safety of a belt conveyor is improved. The voice communication system is used for collecting voice data, then compressing the collected voice data and sending the compressed voice data to other substations, and the substations decode the voice data and play the decoded voice data after receiving the voice data, so that the function of voice communication under mines is achieved.
The existing belt transportation monitoring system and the underground voice communication system are two completely independent systems, so that the structure of the belt transportation system is very complicated, later maintenance and overhaul are not facilitated, and resource waste is caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an underground belt monitoring and voice fusion system based on LPC1768, which can realize underground voice talkback, acquire data of a protection sensor along the belt transportation line and realize the fusion of belt monitoring and voice call.
In order to achieve the above purpose of the invention, the technical scheme adopted for solving the technical problems is as follows:
the utility model provides an underground belt monitoring and speech fusion system based on LPC1768, its characterized in that includes PLC, central control module, power module, storage module, communication module, charactron display module, data acquisition module and speech module, wherein:
the PLC is used for controlling the movement of the belt conveyer under the mine;
the central control module is respectively connected with the PLC, the data acquisition module, the storage module, the voice module, the power supply module, the communication module and the digital display module;
the central control module is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation;
the output end of the power supply module is respectively connected with the input ends of the central control module, the communication module, the voice module, the digital display module and the storage module and is used for supplying power to each module connected with the power supply module;
the storage module is used for storing the voice signal of the voice module;
the data acquisition module is connected with the sensors along the mine belt conveyor and used for receiving signals of the sensors and sending the signals of the sensors to the central control module;
the communication module comprises an Ethernet communication module and a CAN bus communication module; the Ethernet communication module is used for monitoring data communication between the master station and the PLC; the CAN bus communication module is used for data communication among the monitoring substations;
the digital display module is used for displaying addresses of the CAN substations, and each CAN substation corresponds to one monitoring substation;
the voice module is used for collecting voice signals, playing the obtained voice signals and sending the collected voice signals to the central control module.
Optionally, the central control module comprises: and the LPC1768 is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation.
Optionally, the power module may be capable of converting 24v to 5 v;
the power module includes: TPS5430, ceramic capacitor of 0.1uf, 10K resistor and 3.24K resistor; the voltage input pin 7 of the TPS5430 is connected with a 24V input power supply, a 0.1uf ceramic capacitor is connected with the voltage input pin 7, the filtering effect is achieved, the output voltage is determined by a resistor, and the output pin 4 of the TPS5430 is connected with resistors of 10K and 3.24K, so that the voltage of 5V can be output.
Optionally, the storage module is an SD card, and can store and play audio documents.
Optionally, each CAN substation may perform data transmission with a plurality of CAN substations connected to the same bus based on the CAN bus communication module.
Optionally, the voice module may implement a call between different monitoring substations; the voice module includes: VS1063, which may implement encoding operations for data of different audio formats.
Optionally, the voice module uses an MP3 voice coding algorithm, and the VS1063 chip samples an analog voice signal, quantizes and codes the analog voice signal to obtain a digital voice signal, and compresses the digital voice signal into a binary digital stream.
Optionally, the central control module collects data of a protection sensor along the belt conveying line, when the sensor detects that a belt breaks down, the sensor transmits a signal to the monitoring substation, the monitoring substation sends the signal to the main controller PLC through the CAN bus communication module, and the PLC sends a corresponding control instruction to control the operation of the belt conveyor according to the received data.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the invention provides an underground belt monitoring and voice fusion system based on LPC1768, which can realize the fusion of belt monitoring and voice communication, realize underground voice talkback and collect data of a protection sensor along the belt transportation.
The invention integrates the belt transportation monitoring system and the underground voice communication system, so that the structure of the belt transportation system is very simple, and the later maintenance and overhaul are facilitated.
The invention can display the address of the substation, when a fault occurs, the maintenance personnel can know the position of the substation with the problem very quickly, can reach the obstacle quickly, can communicate with the master station personnel very conveniently during maintenance, and if a danger occurs, the master station personnel can also know the situation quickly to rescue the substation, thereby providing guarantee for recovering the operation of equipment and the self safety of the maintenance personnel.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a simplified hardware configuration diagram of an under-mine belt monitoring and speech fusion system based on LPC 1768;
FIG. 2 is a circuit diagram of a power module of an underground belt monitoring and voice fusion system based on LPC 1768;
FIG. 3 is a circuit diagram of a voice module of an underground belt monitoring and voice fusion system based on LPC 1768;
FIG. 4 is a logic diagram of switching between transmitting and receiving voice of an underground belt monitoring and voice fusion system based on LPC 1768;
FIG. 5 is a flowchart of a speech coding process of an under-mine belt monitoring and speech fusion system based on LPC 1768.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1, this embodiment discloses an underground belt monitoring and voice fusion system based on LPC1768, including PLC (PLC host computer controller), central control module, power module, storage module, communication module, charactron display module, data acquisition module and voice module, wherein:
the PLC is used for controlling the movement of the belt conveyer under the mine;
the central control module is respectively connected with the PLC, the data acquisition module, the storage module, the voice module, the power supply module, the communication module and the digital display module;
the central control module is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation;
the output end of the power supply module is respectively connected with the input ends of the central control module, the communication module, the voice module, the digital display module and the storage module and is used for supplying power to each module connected with the power supply module;
the storage module is used for storing the voice signal of the voice module;
the data acquisition module is connected with the sensors along the mine belt conveyor and used for receiving signals of the sensors and sending the signals of the sensors to the central control module;
the communication module comprises an Ethernet communication module and a CAN bus communication module; the Ethernet communication module is used for monitoring data communication between the master station and the PLC; the CAN bus communication module is used for data communication among the monitoring substations;
the digital display module is used for displaying addresses of the CAN substations, and each CAN substation corresponds to one monitoring substation;
the central control module directly writes the corresponding number of the monitoring substation into the nixie tube display module through a program; the digital display module can number the substations, so that the substations can be conveniently and clearly numbered.
The voice module is used for collecting voice signals, playing the obtained voice signals and sending the collected voice signals to the central control module.
Wherein the central control module comprises: and the LPC1768 is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation.
As in fig. 2, the power module may implement a 24v to 5v conversion; the power module includes: TPS5430, ceramic capacitor of 0.1uf, 10K resistor and 3.24K resistor; the voltage input pin 7 of the TPS5430 is connected with a 24V input power supply, a 0.1uf ceramic capacitor is connected with the voltage input pin 7, the filtering effect is achieved, the output voltage is determined by a resistor, and the output pin 4 of the TPS5430 is connected with resistors of 10K and 3.24K, so that the voltage of 5V can be output. The TPS5430 peripheral circuit is simple, good in stability and small in dependence on devices and environment, and output voltage can be more stable through negative feedback of access voltage.
The storage module is an SD card and can store and play audio documents. The data transmission rate of the storage module is high, the integration level is high and weak, the data loss caused by electrostatic damage is easy to occur, the SRV05-4 capacitance is smaller than 1.2pF, the high-speed data transmission requirement of the SD card can be efficiently realized, the SD card has extremely low leakage current, and the power loss under normal work can be reduced to protect the SD card.
Based on the CAN bus communication module, each CAN substation CAN perform data transmission with a plurality of CAN substations connected to the same bus.
As shown in fig. 3, the voice module can implement a call between different monitoring substations; the voice module includes: VS1063, which may implement encoding operations for data of different audio formats.
The voice module uses MP3 voice coding algorithm, VS1063 chip samples analog quantity voice signal, then quantizes and codes the analog quantity voice signal to obtain digital quantity voice signal, and compresses it into a section of binary digital stream.
The voice module is used for collecting voice signals and playing the obtained voice signals, can realize communication between substations, adopts VS1063 as a main chip, and can realize coding operation on data in different audio formats. When voice talkback is carried out, pins 1 and 2 of the chip transmit collected voice data to a VS1063 chip, the data are subjected to voice coding and then transmitted to a voice module transmitted to other substations through a pin 30 of the chip, the other substations receive corresponding data through a pin 29 of the voice module, then the received data are subjected to voice decoding, and then the processed voice data are played through a microphone connected with a pin 39 and a pin 46, so that the voice talkback function of the underground belt is realized.
As shown IN fig. 4, the voice data transceiving mode of the voice module is switched by the 8 th digital quantity input, and when the IN8 input is active (low level), the central control module controls the VS1063 chip to sample the analog audio input signal of the microphone, encode the sampled digital data, and transmit the encoded audio data packet to the ethernet through the ethernet chip. At the same time, the VS1063 chip stops decoding the audio data stream forwarded by the central control module, suppressing the output of the speaker. When the IN8 input is invalid (high level), the single chip microcomputer controls the VS1063 chip to decode all received audio data packets IN the same network segment, and the decoded audio sampling data is output on a loudspeaker after D/A conversion.
The voice module uses an MP3 voice coding algorithm, a VS1063 chip samples an analog quantity voice signal, then the analog quantity voice signal is quantized and coded to obtain a digital quantity voice signal, and the digital quantity voice signal is compressed into a section of binary digital stream;
as shown in fig. 5, the MP3 speech coding algorithm firstly sends the audio data in pulse code modulation format (PCM) to a subband filter bank to process the audio data into 32 subband signals with equal bandwidth, then passes the subband signals through discrete cosine transform (MDCT), then quantizes each subband through a psychoacoustic model, and then passes through huffman coding, and finally only needs to output the coded data according to the format defined by MPEG-1.
The central control module collects data of a protection sensor along the belt conveying line, when the sensor detects that a belt breaks down, a signal is transmitted to the monitoring substation, the monitoring substation sends the signal to the main controller PLC through the CAN bus communication module, and the PLC sends a corresponding control instruction to control the operation of the belt conveyor according to the received data.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the invention provides an underground belt monitoring and voice fusion system based on LPC1768, which can realize the fusion of belt monitoring and voice communication, realize underground voice talkback and collect data of a protection sensor along the belt transportation.
The invention integrates the belt transportation monitoring system and the underground voice communication system, so that the structure of the belt transportation system is very simple, and the later maintenance and overhaul are facilitated.
The invention can display the address of the substation, when a fault occurs, the maintenance personnel can know the position of the substation with the problem very quickly, can reach the obstacle quickly, can communicate with the master station personnel very conveniently during maintenance, and if a danger occurs, the master station personnel can also know the situation quickly to rescue the substation, thereby providing guarantee for recovering the operation of equipment and the self safety of the maintenance personnel.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. The utility model provides an underground belt monitoring and speech fusion system based on LPC1768, its characterized in that includes PLC, central control module, power module, storage module, communication module, charactron display module, data acquisition module and speech module, wherein:
the PLC is used for controlling the movement of the belt conveyer under the mine;
the central control module is respectively connected with the PLC, the data acquisition module, the storage module, the voice module, the power supply module, the communication module and the digital display module;
the central control module is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation;
the output end of the power supply module is respectively connected with the input ends of the central control module, the communication module, the voice module, the digital display module and the storage module and is used for supplying power to each module connected with the power supply module;
the storage module is used for storing the voice signal of the voice module;
the data acquisition module is connected with the sensors along the mine belt conveyor and used for receiving signals of the sensors and sending the signals of the sensors to the central control module;
the communication module comprises an Ethernet communication module and a CAN bus communication module; the Ethernet communication module is used for monitoring data communication between the master station and the PLC; the CAN bus communication module is used for data communication among the monitoring substations;
the digital display module is used for displaying addresses of the CAN substations, and each CAN substation corresponds to one monitoring substation;
the voice module is used for collecting voice signals, playing the obtained voice signals and sending the collected voice signals to the central control module.
2. The LPC 1768-based undersea belt monitoring and speech fusion system according to claim 1, wherein the central control module comprises: and the LPC1768 is used for receiving and processing data received from the data acquisition module and the voice module, transmitting the data received and processed from the data acquisition module to the PLC, and transmitting the data received and processed from the voice module to the monitoring master station and the monitoring substation.
3. The LPC 1768-based underground belt monitoring and speech fusion system according to claim 1, wherein the power module is capable of converting 24v to 5 v;
the power module includes: TPS5430, ceramic capacitor of 0.1uf, 10K resistor and 3.24K resistor; the voltage input pin 7 of the TPS5430 is connected with a 24V input power supply, a 0.1uf ceramic capacitor is connected with the voltage input pin 7, the filtering effect is achieved, the output voltage is determined by a resistor, and the output pin 4 of the TPS5430 is connected with resistors of 10K and 3.24K, so that the voltage of 5V can be output.
4. The LPC 1768-based underground belt monitoring and voice fusion system according to claim 1, wherein the storage module is an SD card and can store and play audio documents.
5. The LPC 1768-based underground belt monitoring and voice fusion system according to claim 1, wherein each CAN sub-station CAN perform data transmission with a plurality of CAN sub-stations connected to the same bus based on a CAN bus communication module.
6. The LPC 1768-based underground belt monitoring and voice fusion system according to claim 1, wherein the voice module can realize the communication between different monitoring substations; the voice module includes: VS1063, which may implement encoding operations for data of different audio formats.
7. The LPC 1768-based underground belt monitoring and speech fusion system speech module of claim 6, wherein the MP3 speech coding algorithm is used in the speech module, and the VS1063 chip samples the analog speech signal, quantizes and codes the analog speech signal to obtain a digital speech signal, and compresses the digital speech signal into a binary digital stream.
8. The LPC 1768-based underground belt monitoring and voice fusion system as claimed in claim 1, wherein the central control module collects data of a protection sensor along a belt transportation line, when the sensor detects a belt failure, a signal is transmitted to a monitoring substation, the monitoring substation sends the signal to a main controller PLC through a CAN bus communication module, and the PLC sends a corresponding control instruction to control the belt conveyor to operate according to the received data.
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| CN202245194U (en) * | 2011-06-23 | 2012-05-30 | 宿州中矿三杰科技有限公司 | Comprehensive protecting and monitoring device for networked belt conveyor |
| CN110351170A (en) * | 2018-04-03 | 2019-10-18 | 安徽工程大学 | Intelligent voice system under a kind of dual CAN bus redundancy structure mine |
| CN110794760A (en) * | 2019-10-29 | 2020-02-14 | 山东大齐通信电子有限公司 | PLC controller framework of mining communication control system and mining communication control system |
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2021
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Patent Citations (4)
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| BRPI0710198A2 (en) * | 2006-03-29 | 2011-08-09 | Mats Lipowski | apparatus and method for detecting drive belt wear and monitoring belt drive system performance |
| CN202245194U (en) * | 2011-06-23 | 2012-05-30 | 宿州中矿三杰科技有限公司 | Comprehensive protecting and monitoring device for networked belt conveyor |
| CN110351170A (en) * | 2018-04-03 | 2019-10-18 | 安徽工程大学 | Intelligent voice system under a kind of dual CAN bus redundancy structure mine |
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