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Tunnel bidirectional visual voice intercom method, robot and system

A technology of voice intercom and robot, which is applied in the direction of earth drilling, mining equipment, mining equipment, etc., can solve the problem of inability to monitor the working status of the two-way voice intercom circuit in real time, inconvenient communication between maintenance personnel and background command personnel in the tunnel, and lack of Two-way voice intercom fault abnormal error correction mechanism and other issues, to achieve the effect of improving emergency management level and efficiency, improving work communication efficiency, eliminating noise and echo

Active Publication Date: 2021-03-16
STATE GRID INTELLIGENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) The two-way intercom experience is very bad, often accompanied by harsh sounds such as echoes, noises, howling, etc.
[0011] (2) There is no error correction mechanism for two-way voice intercom fault abnormalities, and it is impossible to monitor the working status of the two-way voice intercom circuit carried by the robot in real time
[0012] (3) There is no two-way visual function, which causes great inconvenience to the communication between the maintenance personnel in the tunnel and the background command personnel

Method used

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  • Tunnel bidirectional visual voice intercom method, robot and system
  • Tunnel bidirectional visual voice intercom method, robot and system
  • Tunnel bidirectional visual voice intercom method, robot and system

Examples

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Effect test

Embodiment 1

[0040] According to an embodiment of the present invention, an embodiment of a tunnel inspection robot is provided, referring to figure 1 , including: ZYNQ7020 control module, a two-way voice intercom module connected to the ZYNQ7020 control module, a power management module, a drive module, an all-in-one environmental sensor module, a fault discrimination module and an OLED display module.

[0041] in,

[0042] (1) The ZYNQ7020 control module is responsible for the control of the entire tunnel inspection robot, and at the same time communicates with the background through two wireless bridges. The ZYNQ7020 control module includes a complete ARM processing subsystem (PS) and programmable logic unit (PL), and is responsible for completing all control of the tunnel inspection robot after receiving instructions sent from the background.

[0043] (2) The two-way voice intercom module includes: an echo cancellation unit, a pickup, a power amplifier unit and a magnetic induction cu...

Embodiment 2

[0084] According to an embodiment of the present invention, an embodiment of a two-way visual and voice intercom system based on a tunnel inspection robot is provided. Refer to Figure 4 , including: the tunnel inspection robot in the first embodiment, a switch in the tunnel, an AP wireless bridge, a background switch, a background computer, an intercom MIC and a loudspeaker.

[0085]The tunnel inspection robot is equipped with a two-way voice intercom system, runs on the track in the tunnel, and performs daily power inspection tasks. There is a robot STATION bridge inside the tunnel inspection robot, which can perform seamless roaming communication with the AP bridges distributed in the tunnel. The tunnel inspection robot completes the analysis and forwarding of communication commands through the robot STATION bridge and the ZYNQ7020 control module. The ZYNQ7020 control module is responsible for the control of the entire tunnel inspection robot, and at the same time communica...

Embodiment 3

[0088] According to an embodiment of the present invention, an embodiment of a two-way visual voice intercom method based on a tunnel inspection robot is provided, including:

[0089] Collect voice information from the background monitoring terminal and transmit it to the tunnel robot through the network. The tunnel robot decodes the voice information into a remote signal and amplifies the output;

[0090] The tunnel robot collects voice information in the tunnel, and the voice information is decoded into a reply signal; the reply signal, the noise signal in the tunnel, and the echo signal of the far-end signal in the tunnel are superimposed to form a near-end signal;

[0091] After the echo signal in the near-end signal is filtered out by the NLMS adaptive filter, it is transmitted to the background monitoring terminal and output for playback.

[0092] As an optional implementation, the output current of the power amplifier unit used to amplify the output voice signal in the ...

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Abstract

The invention discloses a tunnel bidirectional visual voice intercom method, a robot and a system. The system comprises a control module and a bidirectional voice intercom module connected with the control module, wherein the bidirectional voice intercom module comprises an echo cancellation unit; and the echo cancellation unit can detect voice information of remote monitoring personnel and / or maintenance personnel in a tunnel, and filter out echo signals contained in the voice information of the maintenance personnel in the tunnel by generating predicted echo signals. According to the method, the robot and the system, a bidirectional voice intercom function of the tunnel inspection robot is designed, so that bidirectional visual intercom can be carried out inside and outside the tunnel without moving signals, the working communication efficiency between the maintenance personnel in the tunnel and background monitoring personnel is effectively improved, and the personal safety of theinspection maintenance personnel is guaranteed.

Description

technical field [0001] The invention relates to the technical field of tunnel inspection robots, in particular to a tunnel two-way visual voice intercom method, robot and system. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the rapid development of urban smart grid technology, power grid tunneling and networking have become the characteristics and development direction of urban power grids, especially modern large-scale urban power grids. More and more low- and medium-power overhead lines and some ultra-high-voltage cables go underground tunnel. The cable into the ground can effectively enhance the reliability of the urban power grid, improve the transmission capacity of the line, and at the same time help to eliminate the messy power grid in the urban air, beautify the environment, and increase the use value of the land. As the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 刘维栋李运厂张永生王斌徐怀刚李海东宋志峰蔺茹
Owner STATE GRID INTELLIGENCE TECH CO LTD
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