CN-122001926-A - Digital communication system of overhead man-riding cableway and control method thereof

CN122001926ACN 122001926 ACN122001926 ACN 122001926ACN-122001926-A

Abstract

The invention discloses a digital communication system of an overhead man-riding cableway and a control method thereof; the system comprises a ground upper computer monitor, an underground PLC control master station and a plurality of signal boxes, wherein the ground upper computer monitor, the underground PLC control master station and the plurality of signal boxes are in communication connection through a ring network switch. The control method comprises the following steps of S1, monitoring and receiving transmission signals of a downhole PLC control master station and a signal box by a ground upper computer, S2, judging whether an intra-group call condition exists, processing and updating the state, if not, performing the next step, S3, judging whether a global broadcast condition exists, processing and updating the state, if not, performing the next step, S4, judging whether a music playing condition exists, processing and updating the state, if not, performing the next step, S5, judging whether a fault alarm condition exists, processing and updating the state, and if not, entering an idle state.

Inventors

TAO HAIJUN
GU SHIXI
ZHENG ZHENG
CHEN HONGMING
LIU DIANZI
HU ZHIGUO
ZHANG GUOPENG

Assignees

河南理工大学

Dates

Publication Date: 20260508
Application Date: 20260206

Claims (10)

1. A digital communication system of an overhead man-riding cableway is characterized by comprising a ground upper computer monitor, an underground PLC control master station, a plurality of signal boxes, a ground upper computer monitor, an underground PLC control master station and a plurality of signal boxes, wherein the ground upper computer monitor is used for receiving reported data and observing operation parameters of the overhead man-riding cableway in real time, the underground PLC control master station is used for collecting monitoring signals along the overhead man-riding cableway, the signal boxes are arranged in different tunnels and can realize broadcasting intercom and access to monitoring equipment, the ground upper computer monitor, the underground PLC control master station and the signal boxes are all in communication connection through a ring network switch, the signal boxes in each tunnel are sequentially and equidistantly arranged along the length direction of the tunnel, and adjacent signal boxes are in communication connection through optical fibers.
2. The digital communication system of the aerial passenger cableway according to claim 1, wherein the signal box comprises a controller, a 12V power supply, a loudspeaker, a display screen and a microphone, a network interface is arranged on the controller and is connected with an adjacent signal box through the network interface, an analog AD interface is arranged on the controller and is connected with monitoring equipment through the analog AD interface, a digital IO interface is arranged on the controller and is connected with a ring network switch through the digital IO interface, the input end of the controller is respectively connected with the 12V power supply and the microphone, and the output end of the controller is respectively connected with the loudspeaker and the display screen.
3. The digital communication system of the aerial passenger ropeway of claim 2, wherein the controller is a Rayleigh micro RV1126 chip, the network interface is connected with the adjacent signal box through an optical fiber interface circuit, the optical fiber interface circuit comprises an Ethernet switching control chip and an optical fiber module, the Ethernet switching control chip is connected with the network interface of the controller, and the Ethernet switching control chip is connected with the controller in the adjacent signal box through the optical fiber module.
4. The digital communication system of the aerial passenger ropeway of claim 3, wherein the controller is connected with the microphone through a microphone interface circuit, the microphone circuit comprises a resistor R138, one end of the resistor R138 is connected with a VCC end, the other end of the resistor R138 is respectively connected with one end of a capacitor C106, one end of a capacitor C109 and one end of a resistor R139, the other end of the resistor R139 is respectively connected with one end of a capacitor C107, one end of a capacitor C110 and one end of the microphone, the other end of the capacitor C110, the other end of the capacitor C106 and the other end of the capacitor C109 are grounded, the other end of the microphone is respectively connected with one end of a resistor R16 and one end of a capacitor C108, the other end of the capacitor C107 and the other end of the capacitor C198 are both connected with the controller, and the other end of the resistor R16 is grounded.
5. The digital communication system of the aerial passenger cableway according to claim 4, wherein the controller is connected with a speaker through a speaker interface circuit; the loudspeaker circuit comprises a driving chip, wherein an AVCC pin of the driving chip is connected with one end of a resistor R60 and one end of a capacitor C13, the other end of the resistor R60 is connected with a 12V power supply, a GVDD pin of the driving chip is connected with one end of a capacitor C14, a RINN pin of the driving chip is connected with one end of a capacitor C15, and the other end of the capacitor C13, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded; the FAULT pin and the SD pin of the driving chip are connected with one end of a resistor R58, the other end of the resistor R58 is connected with a 12V power supply, the LINP pin, the LINN pin and the EP pin of the driving chip are grounded, the PVCCL pin of the driving chip is respectively connected with one end of a capacitor C1, one end of a capacitor C2 and one end of an inductor L1, the other end of the inductor L1 is respectively connected with the 12V power supply and one end of a capacitor C3, the other end of the capacitor C1, the other end of the capacitor C2 and the other end of the capacitor C3 are grounded, the BSPL pin and the BSNL pin of the driving chip are respectively connected with one end of a capacitor C4, the other end of the capacitor C4 is respectively connected with one end of a OUTPL pin, OUTNL pin and an inductor L2 of the driving chip, the other end of the inductor L2 is respectively connected with one end of a capacitor C5 and one end of a loudspeaker, the other end of the loudspeaker is respectively connected with one end of a capacitor C6 and one end of the inductor L5, the other end of the capacitor C5 is grounded, the other end of the inductor C5 and the other end of the capacitor C6 is respectively connected with the other end of the inductor C24 and the other end of the inductor C3, the other end of the inductor is connected with one end of the capacitor is connected with the capacitor 62, the other end of the driving chip is connected with the other end of the driving chip, the driving chip is connected with the other end of the capacitor is connected with the capacitor and the capacitor is connected with the end and the capacitor and is connected, the driving chip comprises a BSPR pin, wherein PVCCR pins of the driving chip are respectively connected with one end of a capacitor C16, one end of a capacitor C17 and one end of an inductor L7, the other end of the inductor L7 is respectively connected with a 12V power supply and one end of a capacitor C18, the other end of the capacitor C16, the other end of the capacitor C17 and the other end of the capacitor C18 are all grounded, and GAIN0 pins, GAIN1 pins, AGND pins, PLIMIT pins, RINP pins and PGND pins of the driving chip are all connected with a controller.
6. The digitized communication system of claim 5 wherein said analog AD interface is connected to a monitoring device via an analog AD detection circuit, said analog AD detection circuit comprises an operational amplifier 23.1, an operational amplifier 23.3, an inverting input terminal of said operational amplifier 23.1 is connected to one end of a resistor R63, one end of a capacitor C19, one end of a resistor R66, the other end of a capacitor C19, the other end of a resistor R63, one end of a resistor R69 are connected to the output terminal of said operational amplifier 23.1, the non-inverting input terminal of said operational amplifier 23.1 is connected to one end of a capacitor C28, one end of a resistor R72, one end of a resistor R71, the other end of a resistor R71 is connected to a controller, one end of a resistor R67, the other end of a resistor R66, the other end of a capacitor C28, the other end of a capacitor C72 are grounded, the positive power supply terminal of said operational amplifier 23.1 is connected to one end of a capacitor C20, the other end of a capacitor C20 is grounded, the non-inverting input terminal of said capacitor C23.1 is connected to one end of a capacitor C28, the other end of a resistor R29, the other end of a resistor R27 is connected to the other end of a resistor R29, and the other end of a resistor R73 is connected to the other end of a resistor 29, the other end of a resistor is connected to the resistor 29.
7. The digital communication system of the aerial passenger cableway according to claim 6, wherein the digital IO interface is connected with a ring network switch through a digital IO output circuit and a digital IO input circuit, the digital IO output circuit comprises a relay, a first pin of the relay is connected with a cathode of a diode D25 and one end and a VCC end of a resistor R38 respectively, the other end of the resistor R38 is connected with one end of a signal lamp LED1, the other end of the signal lamp LED1, an anode of the diode D25 and an eighth pin of the relay are connected with a collector of a triode Q2 respectively, a base electrode of the triode Q2 is connected with one end of a resistor R44 and one end of a resistor R41 respectively, the other end of the resistor R41 is connected with the ring network switch, an emitter of the triode Q2 and the other end of the resistor R44 are all grounded, a fourth pin and a fifth pin of the relay are connected with a controller respectively, the digital IO input circuit comprises an optocoupler chip, the first pin of the optocoupler chip is connected with a cathode of a signal lamp LED1 and a 12V power supply respectively, the third pin of the optocoupler chip is connected with a third pin of the diode D3 respectively, an anode of the diode D62 respectively, the other end of the optocoupler chip is connected with the resistor R4 respectively, the other end of the resistor R4 is connected with the resistor R10 respectively, and the other end of the optocoupler chip is connected with the resistor 39C 4 respectively, and the other end of the resistor is connected with the resistor 39C 4 respectively.
8. The digital communication system of the aerial passenger cableway according to claim 7, wherein the ground upper computer monitoring comprises a state monitoring module for broadcasting and intercom in groups, a music playing module for playing songs, and a configuration management module for modifying parameters of a memory card and equipment data, and the state monitoring module, the music playing module and the configuration management module are all in communication connection with a downhole PLC control master station and a signal box through a ring network switch.
9. A control method of an aerial passenger cableway digital communication system according to claim 1, comprising the following steps: S1, monitoring and initializing a ground upper computer, and receiving transmission signals of a downhole PLC control master station and a signal box; S2, judging whether an intra-group call condition exists according to the transmission signal of the signal box, if so, monitoring and carrying out intra-group call processing operation and state updating through a ground upper computer, and if not, carrying out the next step; S3, judging whether a global broadcasting condition exists according to the transmission signal of the signal box, if so, monitoring by a ground upper computer to perform broadcasting processing operation and perform state updating, and if not, performing the next step; S4, judging whether a music playing condition exists according to the transmission signal of the signal box, if so, monitoring the music playing processing operation and updating the state through the ground upper computer, and if not, carrying out the next step; S5, judging whether a fault alarm condition exists according to transmission signals of the underground PLC control master station and the signal box, if so, performing fault transmission and processing operation and state updating through monitoring of the ground upper computer, and if not, enabling the ground upper computer to enter an idle state.
10. The method for controlling the digitized communication system of said overhead man-riding cableway according to claim 9, wherein in said step S2, the ground level computer monitors and eliminates the echo produced by the call condition in the group, its processing step is: S21, processing the transmission signal of the signal box through a filter, and outputting the filter The method comprises the following steps: ; s22, microphone signal of adjacent end signal box And the output of the filter The error signal of (2) is: ; ; wherein y (n) is an echo signal, s (n) is a voice signal of a signal box at an adjacent end; s23, an iterative formula of the filter coefficient is as follows: ; where μ is a step factor.

Description

Digital communication system of overhead man-riding cableway and control method thereof Technical Field The invention relates to the field of mine transportation, in particular to a digital communication system of an overhead man-riding cableway and a control method thereof. Background In mine transportation, the overhead man-riding cableway is an important device for personnel transportation, and has the advantages of convenient use, personnel up and down and simple field control. The overhead man-riding cableway is applied to a large-gradient or long-distance roadway, so that the time for the operators to go up and down the well can be obviously shortened, and the labor intensity of the operators is reduced. The communication system plays a vital role in the transportation of the aerial passenger cableway, not only ensures the safe operation, but also improves the transportation efficiency and the emergency response capability, however, the aerial passenger cableway control system in the prior art mostly arranges special attended personnel to control the operation of the aerial passenger cableway, has low automation degree, can not transmit control signals and the operation condition of the aerial passenger cableway to a ground control center, and needs to be improved. Disclosure of Invention The invention aims at solving the problems and provides a digital communication system of an aerial passenger cableway and a control method thereof, wherein the digital communication system improves the operation automation degree and reliability of the aerial passenger cableway. In order to achieve the above object, the technical scheme of the present invention is as follows: A digital communication system of an overhead man-riding cableway comprises ground upper computer monitoring for receiving reported data and observing operation parameters of the overhead man-riding cableway in real time, an underground PLC control master station for collecting monitoring signals along the overhead man-riding cableway, and a plurality of signal boxes which are arranged in different lanes and can realize broadcasting intercom and access to monitoring equipment, wherein the ground upper computer monitoring, the underground PLC control master station and the signal boxes are all in communication connection through a ring network switch, and the plurality of signal boxes in each lane are sequentially and equidistantly arranged along the length direction of the lane, and adjacent signal boxes are in communication connection through optical fibers. Further, the signal box comprises a controller, a 12V power supply, a loudspeaker, a display screen and a microphone, wherein a network interface is arranged on the controller and is connected with the adjacent signal box through the network interface, an analog AD interface is arranged on the controller and is connected with monitoring equipment through the analog AD interface, a digital IO interface is arranged on the controller and is connected with a ring network switch through the digital IO interface, the input end of the controller is respectively connected with the 12V power supply and the microphone, and the output end of the controller is respectively connected with the loudspeaker and the display screen. The controller is a Rayleigh core micro RV1126 chip, the network interface is connected with the adjacent signal boxes through an optical fiber interface circuit, the optical fiber interface circuit comprises an Ethernet switching control chip and an optical fiber module, the Ethernet switching control chip is connected with the network interface of the controller, and the Ethernet switching control chip is connected with the controllers in the adjacent signal boxes through the optical fiber module. Further, the controller is connected with the microphone through the microphone interface circuit, the microphone circuit comprises a resistor R138, one end of the resistor R138 is connected with the VCC end, the other end of the resistor R138 is connected with one end of a capacitor C106, one end of a capacitor C109 and one end of a resistor R139 respectively, the other end of the resistor R139 is connected with one end of a capacitor C107, one end of a capacitor C110 and one end of the microphone respectively, the other end of the capacitor C110, the other end of the capacitor C106 and the other end of the capacitor C109 are grounded, the other end of the microphone is connected with one end of a resistor R16 and one end of a capacitor C108 respectively, the other end of the capacitor C107 and the other end of the capacitor C198 are connected with the controller, and the other end of the resistor R16 is grounded. Further, the controller is connected with a loudspeaker through a loudspeaker interface circuit; the loudspeaker circuit comprises a driving chip, wherein an AVCC pin of the driving chip is connected with one end of a resistor R60 and one end of a capacitor C13, the other