A multi-dimensional limited space emergency communication device and method

By designing a multi-dimensional limited space emergency communication device, collecting and analyzing dimensional information in the limited space, determining the optimal frequency band wireless signals, and improving signal quality through strengthening and anti-interference modules, the problems of signal superposition and interference in the limited space are solved, and efficient emergency communication and rescue are achieved.

CN117295046BActive Publication Date: 2025-05-23ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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Patent Information

Application Number
CN202311478499.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-08
Publication Date
2025-05-23
Estimated Expiration
2043-11-08

AI Technical Summary

Technical Problem

The complexity of multi-dimensional finite space and the distortion, delay and interference caused by signal superposition seriously affect the emergency communication and rescue capabilities of the limited space.

Method used

A multi-dimensional limited space emergency communication device is designed, including a dimension analysis module, an applicable frequency band configuration module, a signal transmitting unit, a signal receiving unit, a dual-channel reinforcement module and an integrated anti-interference module. By collecting dimensional information in the limited space, analyzing the optimal frequency band wireless signals, performing radio frequency transmission and reception, and improving signal quality through the strengthening and anti-interference module.

Benefits of technology

It has achieved the ability to strengthen the full links of signal transmission, transmission and reception in a limited space, ensured the firm connection of personnel communications and the reliable transmission of emergency information, and improved the protection ability of limited space operations.

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Abstract

The multi-dimensional confined space emergency communication device in the present invention includes a dimensional analysis module, an applicable frequency band configuration module, a signal transmitting unit, a signal receiving unit, a dual-channel reinforcement module, an integrated anti-interference module and a power control unit, which collects dimensional information of the confined space, and strengthens the capabilities of all aspects such as signal transmission, transmission and reception from aspects such as length, angle, depth, height and distance, so as to realize the functions of firm connection of personnel communication and reliable transmission of emergency information under the actual operation state of the confined space, and provide reliable technical support for the protection of confined space operations.
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Description

Technical Field

[0001] The present invention relates to the field of confined space emergency rescue and information communication technology, and in particular to an emergency communication device and method for a multi-dimensional confined space. Background Art

[0002] Reliable transmission of limited space status signals has always been a difficulty affecting emergency rescue in limited spaces. The complexity of multi-dimensional limited spaces, distortion, delay and interference caused by signal superposition, especially in areas such as cable trenches, underground pipelines and underground power stations, have seriously affected the actual communication and emergency rescue in multi-dimensional limited spaces. There are many constraints on communication transmission in power limited spaces, and problems such as signal coverage, superposition interference, and penetration conduction make ordinary emergency communication technologies difficult to apply.

[0003] Many confined space accidents have exposed the problems of weak communication capabilities and poor timeliness of information transmission in confined spaces. Rescue workers cannot grasp the information of confined space environment, personnel, equipment, etc. in time. Once an emergency occurs, emergency rescue cannot be carried out in the first time. At the same time, most of the existing confined space communication technologies are based on optical fiber communication facilities, and the signal transmission and receiving modules are preset in advance. However, the special environment of multi-dimensional confined space is prone to poor stability of communication equipment, poor network reliability, high construction cost, large amount of video transmission and detection data, and high requirements for communication facilities, which makes the applicability poor. The safety control mechanism based on human-initiated control and supervision of confined space has brought certain difficulties. Once the relevant personnel omit or omit necessary links, the effect will be greatly reduced, especially for the risks and emergencies of accidents such as poisoning, suffocation, explosion, fire, falling, drowning, collapse, electric shock, mechanical injury, scalding, etc., the confined space status information cannot be transmitted in time, the operating personnel cannot be located in time, and the supervisory personnel cannot identify and take emergency measures in time, which may cause damage to equipment and facilities, or even casualties. With the increasing maturity of wireless communication technology applications, it has been applied in confined spaces.

[0004] In summary, the gradual undergrounding of power grid facilities such as underground substations, underground cable channels and underground energy storage power stations in urban power grids has led to the diversification of limited space types and service environments, resulting in the continuous development of limited space dimensions, which has put forward higher requirements for emergency communication facilities. Conductivity, higher information capacity and stronger anti-interference capabilities, and require simultaneous processing and synchronous transmission of multiple nodes. Therefore, it is necessary to provide a multi-dimensional limited space emergency communication device and method to achieve the improvement of limited space communication capabilities and shorten emergency rescue time. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-dimensional confined space emergency communication device and method, which can realize functions such as firm connection of personnel communication and reliable transmission of emergency information under actual operating conditions in confined spaces, and provide reliable technical support for confined space operation protection.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A multi-dimensional limited space emergency communication device, comprising:

[0008] Dimension analysis module, used to collect finite space dimension information;

[0009] An applicable frequency band configuration module is signal-connected to the dimension analysis module and is used to analyze limited space dimension information and decompose the data into optimal frequency band wireless signals;

[0010] A signal transmitting unit, which is in signal connection with the applicable frequency band configuration module and is used to transmit the wireless signal by radio frequency;

[0011] A signal receiving unit, which is in signal connection with the dimension analysis module and the signal transmitting unit, and is used to receive the wireless signal and convert it into preset information;

[0012] The power control unit provides power to the dimension analysis module, the applicable frequency band configuration module, the signal transmitting unit and the signal receiving unit.

[0013] Preferably, the multi-dimensional limited space emergency communication device further includes:

[0014] A dual-channel strengthening module, which is signal-connected to the signal receiving module and is used to strengthen the wireless signal;

[0015] An integrated anti-interference module is connected to the signal receiving module and is used to filter and preserve the fidelity of the wireless signal;

[0016] The power control unit provides power for the dual-channel enhancement module and the integrated anti-interference module.

[0017] Preferably, the dimensional analysis module includes a laser rangefinder and an infrared sensor, and the effective spatial dimensional information includes length, angle, depth, width, and distance.

[0018] The present invention also provides a multi-dimensional limited space emergency communication method, comprising the steps of:

[0019] The dimension analysis module collects finite space dimension information;

[0020] The applicable frequency band configuration module performs real-time analysis on physical pan-band signals in limited space based on 5G or ultra-wideband, determines the real-time optimal wireless bandwidth, and decomposes the data into optimal frequency band wireless signals;

[0021] The signal transmitting unit transmits the limited spatial dimension information via radio frequency through an optimal frequency band wireless signal;

[0022] The signal receiving unit receives the signal transmitted by the signal transmitting unit through radio frequency, and converts the received optimal frequency band wireless signal into preset information.

[0023] Preferably, during the transmission of the optimal frequency band wireless signal, the dual-channel reinforcement module reinforces the optimal frequency band wireless signal, and the integrated anti-interference module filters and preserves the optimal frequency band wireless signal.

[0024] The dimensional analysis module collects dimensional information of limited space, including: collecting length, angle, depth, height and distance dimensional information of limited space by using laser ranging and infrared sensing.

[0025] The applicable frequency band configuration module determines the real-time optimal wireless bandwidth after real-time analysis of the transmission conditions and strength of the physical pan-band signal in the limited space.

[0026] The integrated anti-interference module performs filtering and fidelity preservation for the superposition, repetition and clutter of wireless signals in limited space.

[0027] Preferably, the other modules and units are powered by a lithium battery or a lead-acid battery of the power control unit.

[0028] The advantages of the present invention are that the multi-dimensional confined space emergency communication device and method can strengthen the signal emission, transmission, reception and other full-link capabilities in terms of length, angle, depth, height and distance, and realize the functions of firm connection of personnel communication and reliable transmission of emergency information under the actual operation state of the confined space, and provide reliable technical support for the protection of confined space operations. The present invention uses a multi-dimensional confined space emergency communication device and method to conduct real-time analysis of the signal transmission conditions and strength of the physical pan-frequency band of the confined space, and adopts forward and reverse modes to strengthen the optimal frequency band wireless signal communication signal, improve the communication signal's ability to resist superposition, repetition, clutter, etc., and solve the problems of weak transmission capacity of existing emergency communications, low level of wirelessization, and weak transparent transmission capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a multi-dimensional limited space emergency communication device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Please refer to Figure 1A multi-dimensional limited space emergency communication device disclosed in this embodiment includes a dimensional analysis module, an applicable frequency band configuration module, a signal transmitting unit, a signal receiving unit, a dual-channel reinforcement module, an integrated anti-interference module and a power control unit.

[0032] The dimension analysis module includes a laser rangefinder and an infrared sensor to collect dimensional information of limited space, including length, angle, depth, width, distance and other multi-dimensional information. The applicable frequency band configuration module performs real-time analysis on the transmission conditions and strength of the physical pan-band signal (150MHz~7.5GHz) in the limited space, determines the real-time optimal wireless bandwidth, and decomposes the data into the optimal frequency band wireless signal (150MHz~200MHz, 500MHz~750MHz, 1GHz~2.5GHz, 4.5GHz~7.5GHz). The signal transmitting unit transmits various multi-dimensional information such as length, angle, depth, height and distance through the optimal frequency band signal, and the signal receiving module converts the received optimal frequency band wireless signal into preset information. The dual-channel reinforcement module uses forward and reverse modes to reinforce the optimal frequency band wireless signal communication signal twice or multiple times, and the number of reinforcements is based on the length, angle, depth, height and distance. The integrated anti-interference module filters and maintains the fidelity of the superposition, repetition and clutter of the limited space wireless signal to improve the accuracy of the information. The power control unit and dimensional analysis module, applicable frequency band configuration module, signal transmitting unit, signal receiving unit, dual-channel enhancement module and integrated anti-interference module are used to distribute and control power.

[0033] Step 1: The dimensional analysis module uses laser ranging, infrared sensors and other devices to collect dimensional information of limited space, including various and multi-dimensional information such as length, angle, depth, height and distance;

[0034] Step 2: Based on 5G / Ultra-Wideband, the applicable frequency band configuration module performs real-time analysis on the transmission conditions and strength of the physical pan-band signals in the limited space, determines the real-time optimal wireless bandwidth, and decomposes the data into the optimal frequency band wireless signals;

[0035] Step 3: The signal transmitting unit transmits the multi-dimensional information of the dimension analysis module in step 1, such as length, angle, depth, height and distance, through the optimal frequency band signal to ensure the transmission rate and transmission strength of the information;

[0036] Step 4: The signal receiving module receives the signal transmitted in step 3, and converts the received optimal frequency band wireless signal into preset information;

[0037] Step 5: The dual-channel reinforcement module uses forward and reverse modes to reinforce the optimal frequency band wireless signal communication signal twice or multiple times, wherein the number of reinforcements is based on conditions such as length, angle, depth, height and distance;

[0038] Step 6: The integrated anti-interference module performs filtering and fidelity for the superposition, repetition, and clutter of wireless signals in a limited space to improve the accuracy of information;

[0039] Step 7. Each module in the above steps 1-6 can be powered by a power control unit module for power management and power supply. The power control unit draws power from a lithium battery or a lead-acid battery. The power control unit and the dimensional analysis module, the applicable frequency band configuration module, the signal transmitting unit, the signal receiving unit, the dual-channel enhancement module, and the integrated anti-interference module perform power distribution and control.

[0040] The multi-dimensional confined space emergency communication device and method disclosed in this embodiment can operate long-term and reliably at confined space operation sites such as underground substations, underground cable channels, and underground energy storage power stations, and provide workers with reliable signal transmission and emergency rescue information transmission functions in various confined space operation environments.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-dimensional limited space emergency communication method, It is characterized in that Includes steps: The dimension analysis module collects dimensional information of limited space: laser ranging and infrared sensing are used to collect the length, angle, depth, height and distance dimensional information of limited space; The applicable frequency band configuration module performs real-time analysis on physical pan-band signals in limited space based on 5G or ultra-wideband, determines the real-time optimal wireless bandwidth, and decomposes the data into optimal frequency band wireless signals; The signal transmitting unit transmits the limited spatial dimension information via radio frequency through an optimal frequency band wireless signal; The signal receiving unit receives the signal transmitted by the signal transmitting unit through radio frequency, and converts the received optimal frequency band wireless signal into preset information; During the transmission of the optimal frequency band wireless signal, the dual-channel reinforcement module reinforces the optimal frequency band wireless signal. The dual-channel reinforcement module uses the forward and reverse modes to reinforce the optimal frequency band wireless signal communication signal twice or multiple times. The number of reinforcements is based on the length, angle, depth, height and distance conditions. The integrated anti-interference module filters and maintains the fidelity of the optimal frequency band wireless signal. The multi-dimensional limited space emergency communication device based on the multi-dimensional limited space emergency communication method includes: Dimension analysis module, used to collect finite space dimension information; An applicable frequency band configuration module is signal-connected to the dimension analysis module and is used to analyze limited space dimension information and decompose the data into optimal frequency band wireless signals; A signal transmitting unit, which is in signal connection with the applicable frequency band configuration module and is used to transmit the wireless signal by radio frequency; A signal receiving unit, which is in signal connection with the dimension analysis module and the signal transmitting unit, and is used to receive the wireless signal and convert it into preset information; A power control unit, which supplies power to the dimension analysis module, the applicable frequency band configuration module, the signal transmitting unit and the signal receiving unit; The dimension analysis module includes a laser rangefinder and an infrared sensor, and the limited space dimension information includes length, angle, depth, width, and distance.

2. According to the multi-dimensional limited space emergency communication method of claim 1, It is characterized in that The multi-dimensional limited space emergency communication device also includes: A dual-channel strengthening module, which is signal-connected to the signal receiving unit and is used to strengthen the wireless signal; An integrated anti-interference module is signal-connected to the signal receiving unit and is used to filter and preserve the fidelity of the wireless signal; The power control unit provides power for the dual-channel enhancement module and the integrated anti-interference module.

3. According to the multi-dimensional limited space emergency communication method of claim 1, It is characterized in that The integrated anti-interference module performs filtering and fidelity preservation for the limited space wireless signal superposition, repetition and clutter.

4. According to the multi-dimensional limited space emergency communication method of claim 1, It is characterized in that The power supply to other modules and units is provided by the lithium battery or lead-acid battery of the power control unit.

Citation Information

Patent Citations

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