A dual channel finite space signal transmission system and method

Abstract

The application discloses a kind of dual-channel limited space signal transmitting system and method, using MENS micro electro mechanical assembly oscillator design to obtain the self-excitation vibration ability of MHz, GHz different frequency by positive feedback conversion to alternating current signal, real-time analysis is carried out to limited space physical signal sine wave conduction condition, intensity simultaneously, so as to have MHz / GHz dual mode, strong anti-interference ability, signal is not easy to superimpose, strong penetration ability and other characteristics, improve the bandwidth of communication signal emission, anti-superposition, filtering and other capabilities, solve the problem that the principle of traditional signal transmitter is simple, mode is single, and anti-interference ability is poor.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wireless signal transmission in limited space, and particularly relates to a dual-channel limited space signal transmission system and method. BACKGROUND

[0002] The signal collection and transmission in limited space such as cable channels, underground pipelines and closed environments are often affected by environmental factors, resulting in serious interference, distortion, delay and disconnection, which seriously reduces the efficiency of emergency communication and easily causes rescue delay in emergency situations.

[0003] The existing limited space wireless signal transmission assembly is mostly based on traditional modes such as oscillators, amplifiers and antennas, which converts electrical signals into electromagnetic wave signals. The oscillator generates high-frequency electrical signals, the amplifier amplifies the signals to a sufficient degree to drive the antenna to transmit electromagnetic waves, and the antenna converts the electrical signals into electromagnetic wave signals and radiates them out. The principle of the communication signal amplifier is to amplify the signal to a sufficient degree to be received by the receiver. Due to the particularity of limited space, the traditional signal transmitter has simple principle, single mode, poor anti-interference ability and difficult transmission, which causes the signal to be easily covered, superimposed interference, poor penetration ability, and is difficult to apply to the transmission of limited space signals.

[0004] If human intervention is adopted, not only the cost of manpower and material resources is greatly increased, but also greater casualties will be caused once the relevant personnel make technical mistakes or the operation requirements are unqualified, or the guardians cannot accurately judge the dangerous situation and emergency measures.

[0005] With the gradual underground of underground substations, underground cable channels and underground energy storage power stations and other power grid facilities in urban power grids, the types and service environments of limited spaces are diversified, which leads to increasing difficulty in limited space signal transmission, and higher transmission capacity, more diverse modes and wider bandwidth are required for the transmission device. Therefore, it is necessary to provide a dual-channel limited space signal transmission module and a preparation method to realize multi-mode signal transmission and high-efficiency transmission. SUMMARY

[0006] The application aims to provide a dual-channel limited space signal transmission system and method to solve the problem of single mode of limited space signal transmission and be suitable for various complex limited spaces.

[0007] To achieve the above-mentioned purpose, the following technical solutions are adopted:

[0008] A dual-channel limited space signal transmission system comprises:

[0009] A MEMS oscillation circuit unit is used to convert various types of information in limited space from direct current electrical energy into alternating current signal output.

[0010] Signal bandwidth analysis unit, connected with MEMS oscillation circuit unit, for analyzing AC signal data and determining the frequency bandwidth of the transmitted sine wave signal;

[0011] Channel output unit, connected with signal bandwidth analysis unit, for receiving the transmitted signal and performing frequency solidification of the electrical signal sine wave;

[0012] Signal amplification unit, connected with channel output unit, for amplifying the electrical signal sine wave;

[0013] Radio frequency antenna unit, connected with signal amplification unit, for forming an electromagnetic field and realizing signal coverage;

[0014] Power supply control unit, connected with other units, for power distribution and control.

[0015] Preferably, the MEMS oscillation circuit unit is a MEMS micro-electromechanical component oscillator for self-excitation vibration at MHz or GHz frequency.

[0016] Preferably, the signal bandwidth analysis unit analyzes AC signal data including sine wave conduction conditions and sine wave intensity.

[0017] Preferably, the signal amplification unit includes a field effect transistor semiconductor output circuit method for sine signal.

[0018] Preferably, the radio frequency antenna unit includes a driving circuit for driving current to flow in a conductor to form an electromagnetic field and realize signal coverage.

[0019] A dual-channel limited space signal transmission method, comprising the steps of:

[0020] The MEMS oscillation circuit unit converts various types of information in the limited space from direct current energy to AC signal output through positive feedback, and transmits self-excitation vibration sine wave signals at MHz or GHz level.

[0021] The signal bandwidth analysis unit analyzes the sine wave conduction conditions and intensity of physical signals in the limited space in real time, and determines the required transmission sine wave signal frequency bandwidth at MHz or GHz level.

[0022] The channel output unit performs frequency solidification of the electrical signal sine wave through input circuit for the received MHz or GHz level transmission signal.

[0023] The signal amplification unit amplifies the electrical signal sine wave to drive the radio frequency antenna through field effect transistor semiconductor output circuit parameters.

[0024] The radio frequency antenna unit forms an electromagnetic field at MHz or GHz level by the flow of sine wave amplification driving current in a conductor, and realizes signal coverage.

[0025] The advantage of the present application is that: the MEMS micro-electromechanical component oscillator design is selected, has the self-excitation vibration ability of MHz, GHz different frequencies, can emit the sine wave signal with the frequency bandwidth of MHz level or GHz level, and analyzes the sine wave conduction condition and intensity of the limited space physical signal in real time, to provide a new mode for the limited space signal emission. The present application adopts the MEMS micro-electromechanical component oscillator design to convert the positive feedback into an alternating current signal, and obtains the self-excitation vibration ability of MHz, GHz different frequencies. At the same time, the sine wave conduction condition and intensity of the limited space physical signal are analyzed in real time, so that the MHz / GHz dual mode, strong anti-interference ability, signal not easy to superimpose, strong penetration ability and other characteristics are obtained, the bandwidth, anti-superposition, filtering and other abilities of the communication signal emission are improved, and the problems of the traditional signal emitter, such as simple principle, single mode, poor anti-interference ability, difficult transmission, easy to be covered by signal, superimposed interference, poor penetration ability, and difficult to be applied to the limited space signal emission, are solved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic diagram of the double-channel limited space signal emission system of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0028] Please refer to Figure 1 A double-channel limited space signal emission system, comprising: a MEMS oscillation circuit unit, a signal bandwidth analysis unit, a channel output unit, a signal amplification unit, a radio frequency antenna unit, and a power supply control unit.

[0029] The signal bandwidth analysis unit is connected with the MEMS oscillation circuit unit, the channel output unit is connected with the signal bandwidth analysis unit, the signal amplification unit is connected with the channel output unit, the radio frequency antenna unit is connected with the signal amplification unit, and the power supply control unit is connected with other units to provide electric energy.

[0030] According to the above-mentioned double-channel limited space signal emission system, the specific signal emission method is as follows:

[0031] Step 1, the MEMS oscillation circuit unit selects the MEMS micro-electromechanical component oscillator design, has the self-excitation vibration ability of MHz, GHz different frequencies, and converts the limited space information of each type from direct current energy to alternating current signal output by using positive feedback.

[0032] Step 2, the signal bandwidth analysis unit analyzes the sine wave conduction condition and intensity of the limited space physical signal in real time, determines that the required emission sine wave signal bandwidth is MHz level or GHz level.

[0033] Step 3, the channel output unit receives the MHz level, or GHz level transmission signal through the input circuit to solidify the electric signal sine wave frequency;

[0034] Step 4, the signal amplification unit includes a field effect transistor semiconductor, and the field effect transistor semiconductor output circuit parameter is used to amplify the sine wave electric signal to a sufficient degree to drive the radio frequency antenna;

[0035] Step 5, the radio frequency antenna unit includes a driving circuit, and the sine wave amplification driving current is used to form the MHz level, or GHz level electromagnetic field in the conductor to realize the signal coverage;

[0036] Step 6, the power supply control unit is used for power distribution and control of the MEMS oscillation circuit unit, the signal frequency width analysis unit, the channel output unit, the signal amplification unit and the radio frequency antenna unit.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A dual-channel confined space signal transmission system, characterized in that, include: MEMS oscillation circuit unit is used to convert various types of information in a limited space from DC power to AC signal output; The signal bandwidth analysis unit, connected to the MEMS oscillation circuit unit, is used to perform real-time analysis of the sinusoidal wave propagation conditions and intensity of physical signals in a confined space, and to determine whether the required transmitted sinusoidal wave signal bandwidth is in the MHz or GHz range. The channel output unit, connected to the signal bandwidth analysis unit, is used to receive the transmitted signal and solidify the sinusoidal frequency of the electrical signal. The signal amplification unit, connected to the channel output unit, is used to amplify the sinusoidal electrical signal; The radio frequency antenna unit, connected to the signal amplification unit, is used to generate an electromagnetic field to achieve signal coverage; The power control unit is used to distribute and control the power supply to the MEMS oscillation circuit unit, signal bandwidth analysis unit, channel output unit, signal amplification unit, and RF antenna unit.

2. The dual-channel confined space signal transmission system according to claim 1, characterized in that, The MEMS oscillation circuit unit is a MEMS microelectromechanical component oscillator used for self-excited oscillation at MHz and GHz frequencies.

3. The dual-channel confined space signal transmission system according to claim 1, characterized in that, The signal amplification unit includes a field-effect transistor semiconductor, which amplifies the sinusoidal electrical signal to a level sufficient to drive the radio frequency antenna through the output circuit parameters of the field-effect transistor semiconductor.

4. The dual-channel confined space signal transmission system according to claim 1, characterized in that, The radio frequency antenna unit includes a driving circuit for amplifying a sinusoidal driving current to flow in a conductor to form an electromagnetic field, thereby achieving signal coverage.

5. A dual-channel finite-space signal transmission method, characterized in that, Including the following steps: MEMS oscillation circuit units use positive feedback to convert various types of information in a limited space from DC power to AC signal output, emitting self-excited sine wave signals at the MHz and GHz levels; The signal bandwidth analysis unit performs real-time analysis of the propagation conditions and intensity of the sinusoidal signal in the confined space physical signal to determine whether the required bandwidth of the transmitted sinusoidal signal is in the MHz or GHz range. The channel output unit solidifies the received MHz or GHz level transmitted signal into an electrical signal sine wave frequency through the input circuit; The signal amplification unit amplifies the sinusoidal electrical signal to a level sufficient to drive the radio frequency antenna by using the parameters of the field-effect transistor semiconductor output circuit. Radio frequency antenna units utilize sinusoidal amplification to drive the flow of current in a conductor, forming a MHz or GHz level electromagnetic field to achieve signal coverage.

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