CN203084213U - Integrated signal receiving device of radio tunnel perspective instrument - Google Patents
Integrated signal receiving device of radio tunnel perspective instrument Download PDFInfo
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- CN203084213U CN203084213U CN 201220540631 CN201220540631U CN203084213U CN 203084213 U CN203084213 U CN 203084213U CN 201220540631 CN201220540631 CN 201220540631 CN 201220540631 U CN201220540631 U CN 201220540631U CN 203084213 U CN203084213 U CN 203084213U
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Abstract
The utility model discloses an integrated signal receiving device of a radio tunnel perspective instrument. The integrated signal receiving device of the radio tunnel perspective instrument comprises a receiving antenna, a preposition amplification circuit module, a modulation circuit module, a filter circuit module, a signal acquisition circuit module, a signal processor module, a human-computer interface module, a DDS frequency synthesis circuit module and a power supply module. The receiving antenna receives an electromagnetic wave signal sent by a transmitter of the radio tunnel perspective instrument and sends the signal to the preposition amplification circuit module, the signal received by the receiving antenna and a signal generated by the DDS frequency synthesis circuit module are mixed by the modulation circuit module, and then the mixed signals are processed by the filter circuit module, the signal acquisition circuit module and the signal processor module, and finally, the signals are displayed by the human-computer interface module; the power supply module is used to supply power to all the modules, the receiving antenna and a receiving device are placed inside a same shell, and the receiving antenna is made of a high performance permeability magnetic material to substitute a large coil antenna. One of the main characteristics of the integrated signal receiving device of the radio tunnel perspective instrument is that the receiving antenna is miniaturized and is arranged together with the receiving device, so that the integrated signal receiving device is convenient for carrying and project Implementation, the usage complexity and operation time are reduced substantially, and the demands for detecting geological conditions are satisfied.
Description
Technical field
The present invention relates to the integrated signal receiving device of a kind of radio underground electromagnetic wave perradiator, be particularly useful for a kind of physical prospecting equipment that is used for the colliery---radio underground electromagnetic wave perradiator.
Background technology
The radiowave underground electromagnetic wave perradiator is called for short the saturating instrument in hole.Its function is to utilize the propagation characteristic of electromagnetic wave in medium, surveys the tectonic structure in the mine coal face, as subside, tomography, pyrogenic rock, Coal Seam Thickness Change, gas enrichment region and gushing water structure etc.Can reduce a large amount of drilling project amounts, cost saving to the foreseeability of accident potential, effectively avoids accident to take place when improving coal mining, reduces the loss, and increases safety coefficient, improves output and benefit.
For the saturating instrument receiving trap in present hole, general collection and the processing of adopting discrete component to realize signal, and gather electromagnetic wave signal by big coil (as shown in Figure 8), cause the volume of device big, problems such as signal accuracy is low, poor reliability, engineering construction difficulty.
[0003] summary of the invention
The present invention is placed on same enclosure interior with receiving antenna and receiving trap, the magnetic rod antenna made from the high-performance permeability magnetic material replaces big coil antenna, and by the preposition amplification of signal, signal modulation, filtering, signals collecting and digital signal processing, improve received signal quality, reduced the volume of device greatly, be easy to carry and engineering construction, greatly reduced the complicacy and the running time of using, satisfied the demand of geological condition under the detecting shaft.
For achieving the above object, the technical solution used in the present invention is: comprise receiving antenna, pre-amplification circuit module, modulation circuit module, filtering circuit module, signal acquisition circuit module, signal processor module, human-computer interface module, DDS frequency synthesizer circuit module and power module; Described receiving antenna can receive the electromagnetic wave signal that radio underground electromagnetic wave perradiator transmitter sends, and signal sent to the pre-amplification circuit module, the signal that generates with DDS frequency synthesizer circuit module is after the modulation circuit module, after wave circuit module, signal acquisition circuit module and signal processor module are handled after filtration again, through man-machine interface module, power module is used for to all module for power supply; Described receiving antenna and receiving trap are placed on same enclosure interior, make receiving antenna with the high-performance permeability magnetic material and replace big coil antenna.
Compared with prior art, the advantage that has of the present invention is as follows:
1) dispose flexibly, easy and simple to handle.The magnetic rod antenna made from the high-performance permeability magnetic material replaces big coil antenna, and receiving antenna and receiving trap be placed on same enclosure interior, by the preposition amplification of signal, signal modulation, filtering, signals collecting and digital signal processing, improve received signal quality, reduced the volume of device greatly, be easy to carry and engineering construction, easy and simple to handle, regulate the speed fast, reliability is high.
2) antijamming capability is strong.This device can the base area qualitative change change the selective reception frequency, produces the modulation signal of various frequencies by programmed control, and by high-performance filtering and signal Processing, at the strongly disturbing regionally detecting of complexity, can suppress effectively to disturb, and guarantees the accuracy of measuring.
3) the frequency inverted time is short.The debugging frequency signal generate to adopt Direct Digital frequency synthesis (DDS) technology, and DDS is an open cycle system, does not have any feedback element, and compole was short when this structure made the frequency inverted of DDS.In fact, after the frequency control word of DDS changes, need to add up according to new phase increment, could realize the conversion of frequency through after the clock period.Therefore, the time of frequency inverted equals the transmission time of frequency control word, just the time of a clock period.Clock frequency is high more, and switching time is short more.The frequency inverted time of DDS can reach the nanosecond order of magnitude, all wants a short number order of magnitude than the frequency combining method that uses other.
4) frequency resolution is high.If clock frequency is constant, the frequency resolution of DDS is just determined by the figure place N of phase accumulator.Can obtain arbitrarily small frequency resolution as long as increase the figure place N of phase accumulator.At present, the resolution of most of DDS is at the 1Hz order of magnitude, and is many less than 1m Hz even littler.
5) phase change is continuous.Change the DDS output frequency, the phase increment of each clock period of Gai Bianing in fact, the curve of phase function is continuous, just sudden change has taken place in its frequency of moment in the change frequency, thereby has kept the continuity of signal phase.
Description of drawings
Fig. 1 is the integrated signal receiving device structured flowchart of radio underground electromagnetic wave perradiator of the present invention;
Fig. 2 is DDS frequency synthesizer circuit figure of the present invention;
Fig. 3 is modulation circuit figure of the present invention;
Fig. 4 is pre-amplification circuit figure of the present invention;
Fig. 5 is filtering circuit figure of the present invention.
Fig. 6 is that the integrated signal receiving device of radio underground electromagnetic wave perradiator of the present invention is implemented block diagram;
Fig. 7 is a magnetic rod antenna synoptic diagram of the present invention;
Fig. 8 is a big coil synoptic diagram of the present invention;
Fig. 9 is a power management synoptic diagram of the present invention;
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, the integrated signal receiving device of radio underground electromagnetic wave perradiator, this device is made up of receiving antenna module 1, pre-amplification circuit module 2, modulation circuit module 3, filtering circuit module 4, signal acquisition circuit module 5, signal processor module 6, human-computer interface module 7, DDS frequency synthesizer circuit module 8 and power module 9.The magnetic rod antenna that module 1 usefulness high-performance permeability magnetic material is made replaces big coil antenna, and receiving antenna and receiving trap are placed on same enclosure interior, greatly reduces the size of the saturating instrument receiving trap in hole, is convenient to carry in the open air and use; Module 2, module 3, module 4 and module 8 are the advance signal processing section of signal receiving device, realize conversion and the filter function of high-frequency signal to low frequency signal; Module 5 is the signal acquisition circuit module, and the signal after advance signal is handled carries out the AD sampling, and sends to signal processing module 6 by communication port.The signal that module 6 is sent signal acquisition module shows by module 7 after passing through signal Processing and be shown as figure, inverting etc. and handling.
Above-mentioned module 1 high-performance magnetism staff aerial is one of main summary of the invention of this device, and as shown in Figure 7, this antenna twines lead by the high-performance permeability magnetic material and forms the about 10mm of permeability magnetic material diameter, the about 120mm of length.The number of turn that twines lead outward requires and can suitably increase and decrease according to the sensitivity of receiving trap, compares with big coil (coil diameter is about 1000mm) shown in Figure 8, and volume significantly reduces.
Above-mentioned module 2 pre-amplification circuits can amplify the signal that receiving antenna receives;
Above-mentioned module 3 modulation circuit modules mainly realize from the mixing of antenna receiving inputted signal and DDS frequency synthesizer circuit generation signal;
Above-mentioned module 4 is finished the High frequency filter of mixed frequency signal;
Above-mentioned module 5 is mainly finished the collection of sampled signal, is used to control selective reception frequency and ride gain, is made up of to the digital quantity translation circuit MCU control circuit, analog quantity.The frequency of MCU control prime is selected frequency, commutation circuit and ride gain.Can control tuningly by the pilot relay switch-capacitor, and come receive frequency is finely tuned by the induction reactance of translation circuit inductance, the receive frequency of plate is amplified in the control modulation.
Above-mentioned module 6 is a signal processing module, mainly finishes (as the ARM11 chip S3C6410 of Samsung) by a high-performance CPU, is responsible for signal Processing and is shown as functions such as figure, inverting.
Above-mentioned module 7 is Man Machine Interfaces of the saturating instrument receiving trap in hole, mainly module 6 generation information is shown.
Above-mentioned module 8 frequency synthesizer circuits adopt direct digital frequency synthesis technology, and (as the AD9850 of U.S. AD company) finishes by highly integrated chip.Integrated frequency synthesis chip just can produce frequency and the phase place all analog sine or the square wave output of control able to programme after receiving high accuracy clock source and frequency plot control word.
Above-mentioned module 9 is finished accumulator cell charging and discharging management and defencive function for receiving trap provides power supply.Power supply is the 12V Ni-MH battery.Modulation is amplified the required 5V of plate and is directly inserted from the power management plate; The required 5V(of master control borad adds 3.3V in addition, can oneself add voltage stabilizing and produce) and the required 5V power supply of display board insert by the power management plate.As shown in Figure 6, cheating instrument transmitter installation inside mainly is made up of power panel, front panel, signal acquiring board, signal-processing board and display board five parts.Power panel is mainly receiving trap power supply is provided, and finishes accumulator cell charging and discharging management and defencive function.
As shown in Figure 9, the control power supply has 3 tunnel outputs:
Give signal-processing board (6410 plate);
Produce the generating positive and negative voltage that the simulation part needs for a small power supply plate;
About partly power for single-chip microcomputer and DDS.
The positive-negative power of powering usefulness for the simulation part can be isolated the XR12/12D12-12 module by 12V and be produced positive and negative 12V, after add linear voltage stabilizing LM2991S again;
LM2941S can produce ± output of 7V voltage.
DDS, MCU, ADC partly need 5V power supply and 3.3V power supply to be produced by voltage transformation module.
Power supply is that 78L05 can not work owing to be lower than 7V to signal acquiring board to adopt 7V, and voltage is too high, and pressure reduction is too big, and the chip heating is severe.
Dotted portion is made in a plank and goes out following 5 road power supplys altogether among Fig. 9:
1. 5V powers to S3C6410, electric current 1A;
2. 5V give ADC(preferably linear voltage regulator come out) power supply, electric current 100mA can carry out voltage stabilizing by AMS1117-5.0;
3. 3.3V powers to MCU, and electric current 500mA can pass through the AMS1117-3.3 voltage stabilizing;
4. 5V powers to DDS, and electric current 500mA can carry out voltage stabilizing by AMS1117-5.0;
5. ± 7V simulates part to prime, can pass through XR12/12D12-12, LM2991S, the LM2941S module realizes;
Below all can be altogether.But ± 7V insulating power supply, it is not altogether.
Front panel mainly carries out the signal Processing in early stage to the frequency signal that receives antenna samples, is made of the circuit of each several part such as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5 pre-amplification circuit, modulation circuit, DDS frequency synthesizer circuit, filtering circuit four parts.
Signal acquiring board is mainly used in the electromagnetic wave signal that the control front panel produces multiple frequency, is made up of MCU control circuit and DDS two parts circuit.Can control tuningly by the pilot relay switch-capacitor, and come signal frequency is finely tuned by the induction reactance of translation circuit inductance.
Signal-processing board adopts high performance signal processing chip (can adopt the ARM11 chip S3C6410 of Samsung), finishes post-processed, the inverting of sampled signal and shows control etc.
Prime and DDS partly have two signaling interfaces, between connect with radio-frequency joint.
Front panel outputs signal to analog to digital conversion (ADC) circuit of signal acquiring board.
The frequency of the MCU control front panel prime of signal acquiring board is selected frequency, commutation circuit and ride gain.Adopt digital signal, driving waits and is made on the front panel preamplifying circuit.
The frequency of MCU control DDS with the shared MCU of ADC, communicates by SPI between the S3C6410 of MCU and signal-processing board.
Display board is the Man Machine Interface of the saturating instrument receiving trap in hole, mainly signal-processing board generation information is shown.
Should be noted that; above disclosed only is a kind of preferred embodiment of the present invention; certainly can not limit the present invention's interest field with this; under the prerequisite that does not break away from the principle of the invention; those skilled in the art can also make some improvements and modifications, and these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the integrated signal receiving device of radio underground electromagnetic wave perradiator is characterized in that: comprise receiving antenna, pre-amplification circuit module, modulation circuit module, filtering circuit module, signal acquisition circuit module, signal processor module, human-computer interface module, DDS frequency synthesizer circuit module and power module; Described receiving antenna can receive the electromagnetic wave signal that radio underground electromagnetic wave perradiator transmitter sends, and signal sent to the pre-amplification circuit module, the signal that generates with DDS frequency synthesizer circuit module is after the modulation circuit module, after wave circuit module, signal acquisition circuit module and signal processor module are handled after filtration again, through man-machine interface module, power module is used for to all module for power supply; Described receiving antenna and receiving trap are placed on same enclosure interior, make receiving antenna with the high-performance permeability magnetic material and replace big coil antenna.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540631 CN203084213U (en) | 2012-10-22 | 2012-10-22 | Integrated signal receiving device of radio tunnel perspective instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540631 CN203084213U (en) | 2012-10-22 | 2012-10-22 | Integrated signal receiving device of radio tunnel perspective instrument |
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| CN203084213U true CN203084213U (en) | 2013-07-24 |
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| CN 201220540631 Expired - Fee Related CN203084213U (en) | 2012-10-22 | 2012-10-22 | Integrated signal receiving device of radio tunnel perspective instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928887A (en) * | 2012-10-22 | 2013-02-13 | 北京华安奥特科技有限公司 | Integrated signal receiving device of radio trench scenograph |
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- 2012-10-22 CN CN 201220540631 patent/CN203084213U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928887A (en) * | 2012-10-22 | 2013-02-13 | 北京华安奥特科技有限公司 | Integrated signal receiving device of radio trench scenograph |
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Address after: 100085, room 1905, building 1, splendid international ten Street, Haidian District, Beijing Patentee after: Huaan auto Polytron Technologies Inc (Beijing) Address before: 100085, room 1905, building 1, splendid international ten Street, Haidian District, Beijing Patentee before: Beijing Huaan Aote Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20191022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |