CN111162813A - Emergency short-wave wireless communication system and method for power system - Google Patents
Emergency short-wave wireless communication system and method for power system Download PDFInfo
- Publication number
- CN111162813A CN111162813A CN201811235180.6A CN201811235180A CN111162813A CN 111162813 A CN111162813 A CN 111162813A CN 201811235180 A CN201811235180 A CN 201811235180A CN 111162813 A CN111162813 A CN 111162813A
- Authority
- CN
- China
- Prior art keywords
- psk31
- wireless communication
- signal
- signal input
- power system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 11
- 238000004512 die casting Methods 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Transceivers (AREA)
Abstract
The invention relates to an emergency short-wave wireless communication system of a power system, which comprises a PSK31 data communication device, wherein a PSK31 data communication device comprises a PSK31 modulation and demodulation microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, and a PSK31 modulation and demodulation microprocessor comprises an input/output port, a signal input port and a signal output port. The scheme also discloses an emergency short-wave wireless communication method for the power system, which comprises the processes of system power-on self-test, external instruction receiving, short-wave communication signal receiving, data processing, short-wave communication signal output and the like. The invention adopts an independent emergency short-wave wireless communication system based on a phase shift keying 31(PSK31) communication mode, and has the characteristics of low power consumption, long communication distance, high reliability and the like.
Description
Technical Field
The invention relates to a short-wave wireless communication system and a short-wave wireless communication method, in particular to an emergency short-wave wireless communication system and an emergency short-wave wireless communication method for a power system, and belongs to the field of short-wave wireless communication.
Background
The emergency communication system of the power system has special application requirements, under the condition of serious natural disasters, an emergency communication system with self-networking capability can be quickly and independently constructed under the condition that power infrastructure is seriously damaged, the emergency communication terminal of the power system needs to meet the following main requirements that ⑴ is low in power consumption and can independently work for more than 4 hours under the condition of no external power supply, ⑵ equipment needs to be integrated equipment with small volume and light weight and is convenient to carry and network, ⑶ equipment is simple to operate and can automatically process frequency setting, tuning and output power control, ⑷ equipment needs to have strong anti-interference capability, ⑸ equipment needs to have strong environmental adaptability including high working temperature, water resistance and vibration resistance and the like, a single-hop communication range of ⑹ can reach 500km, ⑺ can timely and effectively transmit important power system data for a rear part to effectively make a disaster and reestablish, ⑻ power system communication needs to transmit the small amount of transmitted data, and can timely transmit important key data, so that the emergency communication system can timely and a large-area communication system can not be constructed under the condition that a special mobile communication system can not timely and a special mobile communication technology can be effectively utilized under the condition that a communication system can not be constructed under the emergency communication system can not be established and a special emergency communication system can be quickly.
The short-wave communication system is generally characterized in that a short-wave communication station is composed of radio stations, antennas and a power supply, the short-wave communication station can be divided into a high-power radio station and a low-power portable radio station according to the power, the short-wave communication station generally uses a single-side-band amplitude modulation mode and narrow-band transmission, the bandwidth is generally 3kHz, the short-wave radio station is generally divided into a high-power radio station and a low-power portable radio station according to the power, one radio station can select various antennas to carry out communication at different distances, which antenna equipment is selected according to the transmitting power, the communication power, the working mode, the output impedance, the working frequency and the communication direction of the radio station, the short-wave radio station is used for networking, the short-wave radio station can be used for communication in a mode of single calling, selective calling, group calling and the like by taking a certain place as the center, the coverage area of the communication range is large, the effective communication distance can exceed more than 100km, even can reach more than 1000km, the scheme of a piggyback radio station, the radio station address of a small-pack radio station is selected on the open ground or on the roof, the ground, the radio station of a radio station with the radio station address, the radio station with the radio station address of 100W, the effective communication distance, the general power, the general requirement of a general low-pack, the general low-line, the general power, the general requirement of a general short-pack radio station cannot meet the general requirement of the general short-distance, the general requirement of a general short-distance of a general short-pack radio station, the general short-wave communication system cannot meet the general short-pack communication system, the general requirement of the general short-distance, the general.
Disclosure of Invention
The invention discloses a novel scheme for an emergency short-wave wireless communication system and a method for a power system, and solves the problem that the existing scheme cannot effectively meet the emergency communication requirement of the power system by adopting an independent emergency short-wave wireless communication system based on a phase shift keying 31(PSK31) communication mode.
The emergency short-wave wireless communication system of the power system comprises a PSK31 data communication device, wherein the PSK31 data communication device comprises a PSK31 modulation and demodulation microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, the PSK31 modulation and demodulation microprocessor comprises an input/output port, a signal input port and a signal output port, the signal input port is in communication connection with the signal output end of the signal input circuit through an analog-to-digital converter, the signal output port is in communication connection with the signal input end of the signal output circuit through a digital-to-analog converter, and the signal input end of the signal input circuit and the signal output end of the signal output circuit are in communication connection.
Furthermore, the signal input circuit of the scheme comprises a low-noise amplifier, a low-pass filter A, a radio frequency amplifier A and a low-pass filter B which are sequentially in communication connection along the signal transmission direction, the signal output circuit comprises a low-pass filter C, a radio frequency amplifier B, a band-pass filter A and a power amplifier which are sequentially in communication connection along the signal transmission direction, and the PSK31 modulation and demodulation microprocessor integrates the output clock signals of the low-noise amplifier and the radio frequency amplifier B in a unified mode through a phase-locked loop.
Furthermore, the antenna device of the scheme comprises an antenna component, a band-pass filter B and a duplexer which are sequentially in communication connection, and the antenna device is in communication connection with the signal input end of the signal input circuit and the signal output end of the signal output circuit through the duplexer.
Furthermore, the antenna component of the scheme comprises a balun, a load and a vibrator antenna.
Furthermore, the input/output port of the scheme comprises a Bluetooth port, a USB port, an RS-232 port, a GPS port, a keyboard port and a video output port.
Furthermore, PSK31 data communication device of this scheme still includes the die casting aluminum housing, and the die casting aluminum housing includes half casing A, half casing B of lock, and half casing A's opening border is equipped with interior card limit ring, and half casing B's opening border is equipped with the card limit annular, and interior card limit ring becomes sealed waterproof joint with card limit annular groove, and half casing A and half casing B form the die casting aluminum housing wholly through above-mentioned sealed waterproof joint.
Furthermore, the clamping edge ring groove of the scheme is internally provided with a waterproof sealing ring.
Furthermore, the outside of the die-casting aluminum shell is provided with a plurality of radiating fins.
Furthermore, the side of the half shell A and the side of the half shell B are provided with shielding separation cavities, shielding cover plates are arranged in the shielding separation cavities, and the shielding cover plates shield radio frequency circuit signals.
The scheme also discloses an emergency short-wave wireless communication method for the power system, the emergency short-wave wireless communication method for the power system is based on the emergency short-wave wireless communication system for the power system, the emergency short-wave wireless communication system for the power system comprises a PSK31 data communication device, the PSK31 data communication device comprises a PSK31 modulation and demodulation microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, the PSK31 modulation and demodulation microprocessor comprises an input/output port, a signal input port and a signal output port, and the emergency short-wave wireless communication method for the power: the system is powered on, hardware and drive setting are initialized, a receiving channel is opened, a receiving state is entered, the system checks whether the input/output port of the PSK31 modem microprocessor has signal input, the system judges whether configuration parameters need to be modified and the transceiving mode needs to be switched according to the received input signal, the system completes modification according to a configuration modification instruction and a transceiving mode switching instruction, and after the system performs data processing, the system transmits data to the antenna device through the signal output circuit to complete the transmission processing of the communication signal.
The emergency short-wave wireless communication system and the emergency short-wave wireless communication method for the power system adopt an independent emergency short-wave wireless communication system based on a phase shift keying 31(PSK31) communication mode, and have the characteristics of low power consumption, long communication distance, high reliability and the like.
Drawings
Fig. 1 is a schematic diagram of an emergency short-wave wireless communication system of a power system.
Fig. 2 is a schematic diagram of a first antenna mounting method.
Fig. 3 is a schematic diagram of a second antenna mounting method.
Fig. 4 is a flow chart diagram of an emergency short-wave wireless communication method of a power system.
Detailed Description
As shown in fig. 1, the emergency short-wave wireless communication system of the power system of the invention comprises a PSK31 data communication device, wherein the PSK31 data communication device comprises a PSK31 modem microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, the PSK31 modem microprocessor comprises an input/output port, a signal input port and a signal output port, the signal input port is in communication connection with the signal output end of the signal input circuit through an analog/digital converter, the signal output port is in communication connection with the signal input end of the signal output circuit through a digital/analog converter, and the signal input end of the signal input circuit and the signal output end of the signal output circuit are in communication connection with the antenna device. The scheme adopts an independent emergency short wave wireless communication system based on a phase shift keying 31(PSK31) communication mode, can be completely independent of any other communication network, has low power consumption, long communication distance, high sensitivity, strong anti-jamming capability and strong environmental adaptability, can be self-organized, can work in all weather, and effectively meets the emergency communication requirement of the power system.
In order to realize the input and output of communication signals, the signal input circuit of the scheme comprises a low-noise amplifier, a low-pass filter A, a radio-frequency amplifier A and a low-pass filter B which are sequentially and communicatively connected along a signal transmission direction, the signal output circuit comprises a low-pass filter C, a radio-frequency amplifier B, a band-pass filter A and a power amplifier which are sequentially and communicatively connected along the signal transmission direction, and a PSK31 modulation and demodulation microprocessor integrates the output clock signals of the low-noise amplifier and the radio-frequency amplifier B through a phase-locked loop. In a similar way, in order to ensure that the communication signal receiving and transmitting can both work normally at the same time, the antenna device of the scheme comprises an antenna component, a band-pass filter B and a duplexer which are sequentially in communication connection, and the antenna device is in communication connection with the signal input end of the signal input circuit and the signal output end of the signal output circuit through the duplexer. As shown in fig. 2 and 3, the antenna erection of the present scheme can adopt the two modes, wherein the antenna components include a balun, a load and a dipole antenna. In order to realize the input of external information and the output display of internal information, the input/output port of the scheme comprises a Bluetooth port, a USB port, an RS-232 port, a GPS port, a keyboard port and a video output port.
In order to realize the overall waterproof and heat dissipation functions of the system, the aluminum waterproof shell is adopted in the scheme, specifically, the PSK31 data communication device further comprises a die-cast aluminum shell, the die-cast aluminum shell comprises a half shell A and a half shell B which are buckled, an inner clamping edge ring is arranged at the opening edge of the half shell A, a clamping edge ring groove is arranged at the opening edge of the half shell B, the inner clamping edge ring and the clamping edge ring groove form a sealed waterproof clamping joint, and the half shell A and the half shell B form the die-cast aluminum shell integrally through the sealed waterproof clamping joint. In order to further enhance the waterproof effect, a waterproof sealing ring is arranged in the clamping edge ring groove. In order to enhance the heat dissipation capability of the shell, a plurality of heat dissipation fins are arranged on the outer side of the die-casting aluminum shell. In order to enhance the shielding effect of the shell, the side faces of the half shell A and the half shell B are provided with shielding separation cavities, shielding cover plates are arranged in the shielding separation cavities, and the shielding cover plates shield radio frequency circuit signals. The integrated design is adopted in the scheme, all the functional units are integrated together, the size is small, the weight is light, the movement is convenient and fast, the operation is simple, the device can be used after being started, the reliability of the device is high, and the requirement of emergency communication is met.
The scheme also discloses an emergency short-wave wireless communication method of the power system, the emergency short-wave wireless communication method of the power system is based on the emergency short-wave wireless communication system of the power system, the emergency short-wave wireless communication system of the power system comprises a PSK31 data communication device, the PSK31 data communication device comprises a PSK31 modulation and demodulation microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, and the PSK31 modulation and demodulation microprocessor comprises an input/output port, a signal input port and a signal output port. As shown in fig. 4, the method includes the processes of: the system is powered on, hardware and drive setting are initialized, a receiving channel is opened, a receiving state is entered, the system checks whether the input/output port of the PSK31 modem microprocessor has signal input, the system judges whether configuration parameters need to be modified and the transceiving mode needs to be switched according to the received input signal, the system completes modification according to a configuration modification instruction and a transceiving mode switching instruction, and after the system performs data processing, the system transmits data to the antenna device through the signal output circuit to complete the transmission processing of the communication signal. The scheme adopts an independent emergency short wave wireless communication system based on a phase shift keying 31(PSK31) communication mode, can be completely independent of any other communication network, has low power consumption, can independently carry out communication for more than 4 hours without an external power supply, has long communication distance, can meet the requirement of single hop of 500 kilometers, can realize self-networking, has high sensitivity, strong anti-interference capability and strong environmental adaptability, can work in all weather, and effectively solves a plurality of problems generated by the existing equipment.
The scheme discloses an emergency communication terminal system scheme utilizing short-wave wireless communication, and the emergency communication requirement of a power system under the condition of major natural disasters of the power system is completely met. This scheme can be totally independent of any other communication network, low-power consumption has been realized, can independently carry out communication more than 4 hours when not having external power supply, communication distance is far away, can satisfy the requirement of single hop 500 kilometers, can self-organizing the network, high sensitivity, there is very strong interference killing feature, environmental suitability is very strong, can work in all weather, adopt the integrated design, all functional unit are all integrated together, small, light in weight, it is convenient to remove, easy operation, the start is used promptly, equipment reliability is high, satisfy the requirement of emergency communication.
The complete phase shift keying 31(PSK31) short-wave emergency communication terminal system comprises a radio frequency front end part, a digital processing part, an interface and power supply part, an antenna part and the like, wherein the radio frequency front end part adopts a multi-stage frequency conversion transmitter and receiver structure, high sensitivity and strong anti-interference capability are provided for the system, a high-precision constant temperature crystal oscillator reference source provides stable receiving and transmitting frequency, the frequency precision of the short-wave communication terminal device can reach +/-0.05 ppm and is far superior to that of a conventional short-wave radio station, the digital processing part adopts a digital-to-analog, analog-to-digital conversion chip and a baseband signal processing module, modulation and demodulation of a phase shift keying 31(PSK31) signal are processed, the phase shift keying 31(PSK31) is used as a key for realizing low-power consumption and long-distance reliable communication, the bandwidth of very low signal is used under a specific low data rate, the receiving sensitivity can be greatly improved, the wireless output power of the device is greatly reduced, the power output of 5W or even lower power can meet the requirements of long-distance communication, the power consumption, the volume and weight of the requirements of the long-distance communication, the equipment can be greatly reduced, the extremely high-severe, the power consumption, the compatibility of the GPS-frequency conversion of the GPS-compatible single-cell phone system can be greatly improved, the GPS-USB chip microcomputer, the USB chip microcomputer chip, the USB chip microcomputer module, the USB interface, the.
The phase shift keying 31(PSK31) communication terminal system of the scheme is tested and verified in the aspects of non-blind area antenna erection, phase shift keying 31(PSK31) short wave data transmission technology, long-distance communication, all-weather use and the like, and technical innovation and improvement are realized.
Antenna without blind area and its erection
The short-wave antenna is required to have the following characteristics that ⑴ antenna structure is required to be light and convenient to carry and can be erected and collected quickly, ⑵ antenna tuning is not needed, good matching can be achieved within the range of 2-30 MHz, ⑶ omnidirectional communication radius is 1000 kilometers, reliable communication can be achieved within the range of 600 kilometers, and ⑷ solves the problem of antenna blind areas.
Phase shift keying 31(PSK31) short wave data transmission technology
Phase shift keying 31(PSK31) is an excellent narrowband digital approach, using a very narrow bandwidth, and since its signal rate is always kept at 31.25 bits per second, this approach is called phase shift keying 31(PSK31), which can use a very narrow bandwidth to achieve high performance data transmission, and can establish reliable communication even in case of large interference, which is a significant feature in today's severely interfered short bands. Although the signal rate of phase shift keying 31(PSK31) is only 31.25 baud, its throughput rate can reach 50WPM per minute due to using new coding technique, it belongs to synchronous transmission system, but it does not use "START-STOP BIT" and ARQ of other synchronous mode, and has no related information flow to flip protocol, when the sending buffer of the sending end has no data, it automatically transmits zero signal for keeping synchronization, even if it is added in midway, it can be well synchronized without manual intervention, because of using PSK, the transmitted information is not sensitive to noise, especially for large burst pulse, the sending end can disperse noise energy by using convolution code, and can be successfully demodulated by matched Viterbi decoder at the receiving end. The scheme adopts a microchip DSP IC advanced microprocessor, and realizes the phase shift keying 31(PSK31) modulation and demodulation function by means of a unique algorithm of software.
Long distance communication
According to the scheme, two phase shift keying 31(PSK31) communication terminals are adopted to carry out actual communication tests at different distances, and the data error rate can be lower than 5%. The test distances are shown in the following table: and the bit error rates of the uplink data and the downlink data are tested at 25 km, 125 km, 325 km and 500 km.
All-weather use
Phase shift keying 31(PSK31) communication terminal has been designed with structural and reliability aspects to ensure all-weather complex environment usage, including the following aspects:
⑴ choice of material
The main structure body of the device adopts a die-casting aluminum shell shape. The aluminum alloy material has the characteristics of low density and high thermal conductivity, and is commonly used in electronic equipment. The die-casting aluminum alloy has excellent die-casting performance, and is produced in a die-casting mode by opening a die and performing die-casting when the equipment is shaped and is produced in a mass production mode, so that the cost is reduced, and the supply efficiency is improved.
⑵ thermal design
The temperature range of the working environment of the equipment is-40 ℃ to +55 ℃. And finite element analysis software is adopted to simulate the layout of the equipment power consumption devices, so that the structural design is ensured to meet the heat dissipation requirement. For a high-power-consumption device, heat dissipation needs to be considered independently, for example, heat is conducted to a large aluminum casing of an equipment main body by adopting heat conducting materials (such as a heat conducting gasket and heat conducting glue). The heat dissipation tooth sheet is designed outside the aluminum shell, so that the overall heat dissipation capacity of the equipment is improved, and the long-term uninterrupted work of the equipment is ensured.
⑶ electromagnetic compatibility design
For radio frequency circuits, a shielding separation cavity and a shielding cover plate are designed on an aluminum alloy shell to shield the aluminum alloy shell. In order to ensure the shielding effect, measures such as reducing the mounting distance of the screws, dispensing conductive adhesive and the like can be adopted.
⑷ waterproof design
The equipment main body is a shell body with an upper side and a lower side, and a mode that a sealing groove is matched with a corresponding sealing ring is adopted on a contact surface, so that the sealing and waterproof requirements are met. And selecting the external connector on the shell, wherein the protection grade of the connector is not lower than IP 67. In order to improve the waterproof performance of the equipment, multilayer waterproof, optimized waterproof grooves, measures such as selecting high-quality sealing materials and the like can be adopted, and the structural waterproof design is optimized and simplified.
⑸ fire protection requirements
Proper materials and components are selected according to the requirement of flame-retardant grade, and the structural design is optimized, so that the requirements of reducing ignition danger and flame spread are met.
⑹ earthquake resistance
The installation of components such as the internal single board and the like is reliable in design, and the effective isolation of external mechanical packaging and internal electrical components is well made. In order to improve the shock resistance of the equipment, during structural design, the shock resistance design is made in consideration of the strength of each mechanism and the installation stability of the internal single plate assembly.
Based on the characteristics, compared with the existing similar schemes, the emergency short-wave wireless communication system and method for the power system have outstanding substantive characteristics and remarkable progress.
The emergency short-wave wireless communication system and method for the power system according to the present invention are not limited to the content disclosed in the specific embodiment, the technical solutions presented in the embodiments can be extended based on the understanding of those skilled in the art, and simple alternatives made by those skilled in the art according to the present invention in combination with common knowledge also belong to the scope of the present invention.
Claims (10)
1. The utility model provides an emergent shortwave wireless communication system of electric power system, characterized by includes PSK31 data communication device, PSK31 data communication device includes PSK31 modem microprocessor, signal input circuit, signal output circuit, phase-locked loop, antenna device, power supply unit, PSK31 modem microprocessor includes input/output port, signal input port, signal output port, signal input port pass through analog/digital converter with signal input end communication connection of signal input circuit, signal output port pass through digital/analog converter with signal output circuit's signal input end communication connection, signal input circuit's signal input end, signal output circuit's signal output end with antenna device communication connection.
2. The power system emergency shortwave wireless communication system according to claim 1, wherein the signal input circuit comprises a low-noise amplifier, a low-pass filter A, a radio-frequency amplifier A and a low-pass filter B which are sequentially and communicatively connected in a signal transmission direction, the signal output circuit comprises a low-pass filter C, a radio-frequency amplifier B, a band-pass filter A and a power amplifier which are sequentially and communicatively connected in the signal transmission direction, and the PSK31 modem microprocessor integrates the clock signals of the outputs of the low-noise amplifier and the radio-frequency amplifier B through the phase-locked loop.
3. The power system emergency short-wave wireless communication system according to claim 1, wherein the antenna device comprises an antenna component, a band-pass filter B and a duplexer which are sequentially connected in communication, and the antenna device is connected with the signal input end of the signal input circuit and the signal output end of the signal output circuit in communication through the duplexer.
4. The power system emergency shortwave wireless communication system of claim 3, wherein the antenna components comprise baluns, loads, element antennas.
5. The power system emergency shortwave wireless communication system of claim 1, wherein the input/output port comprises a bluetooth port, a USB port, an RS-232 port, a GPS port, a keyboard port, a video output port.
6. The power system emergency shortwave wireless communication system according to claim 1, wherein the PSK31 data communication device further comprises a die-cast aluminum housing, the die-cast aluminum housing comprises a half housing a and a half housing B which are fastened together, an opening edge of the half housing a is provided with an inner clamping ring, an opening edge of the half housing B is provided with a clamping ring groove, the inner clamping ring and the clamping ring groove form a sealed waterproof clamping connection, and the half housing a and the half housing B form a die-cast aluminum housing whole body through the sealed waterproof clamping connection.
7. The emergency short-wave wireless communication system of the power system according to claim 6, wherein a waterproof sealing ring is arranged in the snap ring groove.
8. The power system emergency short-wave wireless communication system according to claim 6, wherein a plurality of heat dissipation fins are arranged on the outer side of the die-cast aluminum shell.
9. The power system emergency short-wave wireless communication system according to claim 6, wherein shielding compartments are provided on side surfaces of the half shells A and B, shielding cover plates are provided in the shielding compartments, and the shielding cover plates shield radio frequency circuit signals.
10. An emergency short-wave wireless communication method of a power system, wherein the emergency short-wave wireless communication method of the power system is based on an emergency short-wave wireless communication system of the power system, the emergency short-wave wireless communication system of the power system comprises a PSK31 data communication device, the PSK31 data communication device comprises a PSK31 modem microprocessor, a signal input circuit, a signal output circuit, a phase-locked loop, an antenna device and a power supply device, the PSK31 modem microprocessor comprises an input/output port, a signal input port and a signal output port, and the emergency short-wave wireless communication method of the power system is characterized by comprising the following:
the system is powered on, hardware and drive setting are initialized, a receiving channel is opened, a receiving state is entered, the system checks whether the input/output port of the PSK31 modem microprocessor has signal input, the system judges whether configuration parameters need to be modified and the transceiving mode needs to be switched according to the received input signal, the system completes modification according to a configuration modification instruction and a transceiving mode switching instruction, and after the system performs data processing, the system transmits data to the antenna device through the signal output circuit to complete the transmission processing of the communication signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235180.6A CN111162813A (en) | 2018-10-22 | 2018-10-22 | Emergency short-wave wireless communication system and method for power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235180.6A CN111162813A (en) | 2018-10-22 | 2018-10-22 | Emergency short-wave wireless communication system and method for power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111162813A true CN111162813A (en) | 2020-05-15 |
Family
ID=70555062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811235180.6A Pending CN111162813A (en) | 2018-10-22 | 2018-10-22 | Emergency short-wave wireless communication system and method for power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111162813A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8188907B2 (en) * | 2009-09-12 | 2012-05-29 | International Business Machines Corporation | Aircraft collision avoidance alarm |
| CN103746167A (en) * | 2013-12-27 | 2014-04-23 | 青岛中科软件股份有限公司 | A 779MHz radiofrequency module of a board-mounted PCB antenna |
| CN204269828U (en) * | 2014-11-17 | 2015-04-15 | 江苏博纳雨田通信电子有限公司 | Ultrathin low-power consumption Big Dipper RDSS module |
| CN105071804A (en) * | 2015-07-23 | 2015-11-18 | 中国电子科技集团公司第四十一研究所 | Low phase noise wideband microwave local oscillator source circuit and realization method thereof |
| CN205091903U (en) * | 2015-11-03 | 2016-03-16 | 北京蓝天多维科技有限公司 | Wireless data transmission device |
| CN105576362A (en) * | 2015-12-25 | 2016-05-11 | 哈尔滨工业大学（威海） | Miniature broadband antenna device |
| CN205785183U (en) * | 2016-07-05 | 2016-12-07 | 西安展意信息科技有限公司 | Height above sea level measurement apparatus based on satellite fix |
| CN207395907U (en) * | 2017-10-27 | 2018-05-22 | 安徽徽远成电气科技股份有限公司 | A wireless temperature measurement communication terminal equipment |
| US20180233816A1 (en) * | 2015-09-14 | 2018-08-16 | Jaguar Land Rover Limited | Vehicle communication apparatus and method |
| CN207896962U (en) * | 2018-01-02 | 2018-09-21 | 广州吉欧电子科技有限公司 | High-power data transmission receives and dispatches radio station |
-
2018
- 2018-10-22 CN CN201811235180.6A patent/CN111162813A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8188907B2 (en) * | 2009-09-12 | 2012-05-29 | International Business Machines Corporation | Aircraft collision avoidance alarm |
| CN103746167A (en) * | 2013-12-27 | 2014-04-23 | 青岛中科软件股份有限公司 | A 779MHz radiofrequency module of a board-mounted PCB antenna |
| CN204269828U (en) * | 2014-11-17 | 2015-04-15 | 江苏博纳雨田通信电子有限公司 | Ultrathin low-power consumption Big Dipper RDSS module |
| CN105071804A (en) * | 2015-07-23 | 2015-11-18 | 中国电子科技集团公司第四十一研究所 | Low phase noise wideband microwave local oscillator source circuit and realization method thereof |
| US20180233816A1 (en) * | 2015-09-14 | 2018-08-16 | Jaguar Land Rover Limited | Vehicle communication apparatus and method |
| CN205091903U (en) * | 2015-11-03 | 2016-03-16 | 北京蓝天多维科技有限公司 | Wireless data transmission device |
| CN105576362A (en) * | 2015-12-25 | 2016-05-11 | 哈尔滨工业大学（威海） | Miniature broadband antenna device |
| CN205785183U (en) * | 2016-07-05 | 2016-12-07 | 西安展意信息科技有限公司 | Height above sea level measurement apparatus based on satellite fix |
| CN207395907U (en) * | 2017-10-27 | 2018-05-22 | 安徽徽远成电气科技股份有限公司 | A wireless temperature measurement communication terminal equipment |
| CN207896962U (en) * | 2018-01-02 | 2018-09-21 | 广州吉欧电子科技有限公司 | High-power data transmission receives and dispatches radio station |
Non-Patent Citations (2)
| Title |
|---|
| 万莎，许彪，郑高哲: "基于WPC61的短波业余电台数字信号的监测与分析", 《中国无线电》 * |
| 李晓虹: "《现代电子工艺》", 31 January 2015 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH10177436A (en) | Wireless modem having auxiliary power source | |
| CN111431584A (en) | Satellite mobile communication terminal based on radio frequency transceiver chip module | |
| CN111800160A (en) | Electronic equipment | |
| CN207557461U (en) | A kind of L-band miniaturization T/R components with digital modulation function | |
| CN212969627U (en) | Antenna feed system and antenna kit of vehicle-mounted satellite communication antenna for communication in motion | |
| CN201336659Y (en) | Communication integration multi-system base station multiplexer | |
| CN111162813A (en) | Emergency short-wave wireless communication system and method for power system | |
| CN210297690U (en) | Satellite-ground converged communication carry-on communication device | |
| CN114374074A (en) | Ku frequency band phased array antenna and terminal | |
| CN203734846U (en) | High-speed mobile rail transit ground gateway gathering base station | |
| CN216646824U (en) | Airborne Beidou double-antenna command type user machine | |
| CN204291402U (en) | Based on the extendible boat-carrying radio message transceiver terminal of big-dipper satellite | |
| CN117158019A (en) | Systems and design methods for integrated macro next-generation radio units | |
| CN114114329A (en) | Airborne Beidou double-antenna command type user machine | |
| CN205680777U (en) | A kind of MIMO ceiling mount antenna | |
| CN108667469B (en) | Two-way satellite communication terminal capable of adapting to small inclination angle communication satellite and high-speed motion condition | |
| CN221669850U (en) | A KU spread spectrum band flat up and down converter | |
| CN220190908U (en) | Foldable electronic equipment | |
| CN216162807U (en) | Antenna integrated central access equipment for wireless communication system | |
| CN217693325U (en) | Radio frequency system and electronic equipment | |
| CN113949407B (en) | A kind of electronic equipment and antenna structure | |
| CN212571361U (en) | Outdoor 4G waterproof antenna | |
| CN210838069U (en) | Intercom antenna structure and intercom | |
| CN203734666U (en) | High-speed mobile rail transit ground relay base station | |
| CN109819425A (en) | V-band high-speed digital transmission near field communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200515 |