CN102646318A - Distress alarm and distress method for electric power field line patrol distress - Google Patents
Distress alarm and distress method for electric power field line patrol distress Download PDFInfo
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Abstract
A distress alarm and a distress method for electric power field line patrol distress belong to the technical field of field communication and solve the problem that electric power line patrol staff cannot send out distress information and their exact locations timely and accurately when encountering danger or emergencies. The positioning signal output end of a global positioning system (GPS) module of the distress alarm is connected with the positioning signal output end of a microcontroller, the alarm signal input end of the microcontroller is connected with the alarm signal output end of an alarm key, alarm signals and positioning data of the microcontroller telecommunicate with a control center through a wireless communication module. The distress method includes that the GPS module receives and calculates satellite positioning signals and then sends the satellite positioning signals to the microcontroller, the microcontroller receives navigation positioning information and detects whether the alarm signal is received, and if the alarm signal is received, the microcontroller sends the last received group of navigation positioning information to the wireless communication module and sends out a wireless distress signal through the wireless communication module.
Description
Technical field
The present invention relates to the open-air line walking of a kind of electric power rescue beacon in danger and calling method, belong to open-air communication technical field.
Background technology
Progressively be penetrated into the various aspects of people's work and life along with infotech; Human society has got into an era of knowledge-driven economy; Communication technology of satellite, computer technology and Internet technology have become the basic fundamental of information society; In all trades and professions, obtained extensive and deep application, these The Application of Technology help improving telemanagement, reduce open-air operation cost.
Along with high speed development of national economy; All trades and professions are increasing to the demand of communication, and are also increasingly high to the requirement of communication quality, yet communicating pair all will could be realized bidirectional data communication in the public network coverage; Owing to receive the constraint of public network coverage; Some in case of emergency can not send position and calling for help information in no network coverage signal area like the personnel of field work, the personnel of offshore operation and the personnel of remote mountain areas operation timely and effectively, therefore need a kind of equipment; Guarantee the safety of transmission line of electricity and equipment thereof, this is an urgent demand of present gps satellite positioning system development.
At present, communication technology of satellite, computer technology and Internet technology have been applied in field work, offshore operation and the remote mountain areas operation.With the ocean is example; Catch the waterlogging development for cooperating the ocean to catch the waterlogging industry to off-lying sea and ocean; The sustainable development that keeps marine fishing is necessary for operation fishing boat and service ships and is equipped with advanced location and communication apparatus, guarantees that land administrative organization for fisheries carries out the unified monitoring scheduling to ship; And when danger and disaster takes place, in time, exactly ship and ship's staff are saved.Satnav and calling system are that fishing boat is rushed the deep-sea and striven for high yield and created condition, also help relevant notice of fish-farming operation and meteorological department issue in time and meteorological message, and what be convenient to the search-and-rescue work of fishing boat after in danger carries out and improve the possibility that the fisherman is rescued of getting into danger.Satnav and calling system also can be used for solving manufacturing-oriented personnel and extraneous problem of getting in touch in the desert, can be used for open-air coal mining industry.
Information-based management with networking is that offshore operation and field work provide advantage.Development along with technology; The distress call contact device is more and more; Like mobile phone or other mobile device, GPRS navigation and the watch-dog etc. that transmit speech and note based on the GSM network; Because most transmission line of electricity is remote, the electric power track walker often runs in the guide in the holy hermits at circuit place, and these depopulated zones often do not have the public network signal to cover; Thereby the electric power track walker faces a danger or be difficult to distress signals and self accurate location are sent promptly and accurately during emergency condition, brings very big difficulty for control center and patrol vehicle search-and-rescue work.These distress call contact device are owing to receive public network signal cover, calling for help personnel to effects limit such as the not yet done statement in geographic position are unclear, make definite track walker's that control center or patrol vehicle can't be promptly and accurately geographic position and carry out and rescue.
Some scholars and developer have proposed multiple locator meams; Like GSM cell localization, gps satellite location, GPSOne running fix etc.; Wherein GPSOne running fix has combined gps satellite signal and cdma network signal to carry out mixed positioning, therefore when the terminal in following time of situation indoor or that satellite-signal is bad, use cdma base station assist location; Have characteristics such as the blind area is few, locating speed is fast, applied widely; Be the commercial positioning system that has development prospect most, but also there are some shortcomings in this positioning system, comprising:
(1) GPSOne positioning system itself is based upon on the cdma wireless network of UNICOM, receives the influence of network signal overlay area.
(2) the GPSOne location needs to rely on CHINAUNICOM that service support is provided, and certain expense all will be paid in each location, is free unlike gps satellite location that kind.
Summary of the invention
The present invention is facing a danger or during emergency condition in order to solve the electric power track walker, is difficult to the problem that distress signals and self accurate location are sent promptly and accurately, and the open-air line walking of a kind of electric power rescue beacon in danger and calling method are provided.
The open-air line walking of electric power according to the invention rescue beacon in danger, it comprises GPS module, microcontroller, wireless communication module and warning button,
The GPS module is used for receiving satellite positioning signals; The positioning signal output terminal of GPS module connects the positioning signal input end of microcontroller; The alerting signal input end of microcontroller connects the alarm signal output ends of warning button, and the alerting signal of microcontroller and locator data are carried out telecommunication through wireless communication module and control center.
It also comprises keyboard and display is set,
The preset signal output terminal that keyboard is set connects the preset signal input end of microcontroller, and the shows signal output terminal of microcontroller connects the shows signal input end of display.
Wireless communication module adopts the SBD9602 or the N606 of iridium satellite.
The open-air line walking of electric power calling method in danger based on the open-air line walking of above-mentioned electric power rescue beacon in danger according to the invention,
It may further comprise the steps:
Step 1: the real-time receiving satellite positioning signals of GPS module also calculates navigator fix information, is sent to microcontroller through asynchronous serial port;
Step 2: microcontroller adopts interrupt mode to receive navigator fix information, and detects whether receive alerting signal simultaneously, when receiving alerting signal, and execution in step three;
Step 3: last group navigator fix information that microcontroller will receive sends to wireless communication module, and sends wireless distress call through this wireless communication module.
Advantage of the present invention is: the present invention can be under the situation that does not have the public network signal to cover; With the track walker when danger or the emergency condition; Self accurate location and distress signals reliably send control center to or line walking is searched and rescued car; Make control center follow the tracks of the track walker whenever and wherever possible, guarantee staff's safety, for the safety of transmission line of electricity and equipment thereof provides powerful guarantee.
It is little that the present invention has the circuit coverage, the advantage that accurate positioning and error are little.It has made full use of the gps satellite positioning system; Can follow the tracks of the track walker whenever and wherever possible, in a single day the track walker faces a danger and can send calling for help at once, does not receive the restriction of GSM public network coverage; For the electric power control and management brings great convenience, improved work efficiency greatly.
Call for help and position transmission task through experiment showed, that rescue beacon according to the invention and calling method can be accomplished in the operating radius of the area that does not have mobile phone signal at 8.6kM.Rescue beacon can adopt powered battery, and the working time can reach more than 8 hours.
Description of drawings
Fig. 1 is the structured flowchart of apparatus of the present invention;
Fig. 2 is the process flow diagram of the inventive method.
Embodiment
Embodiment one: below in conjunction with Fig. 1 this embodiment is described, the open-air line walking of the said electric power of this embodiment rescue beacon in danger, it comprises GPS module 1, microcontroller 2, wireless communication module 3 and warning button 4,
Required warp, Position Latitude data are stored and filtered out to microcontroller ATmega128a module to the GPS information that receives; When the track walker asked to call for help, one group of warp that microcontroller will receive recently, distress call packet of Position Latitude data composition sent through the satellite communication module of iridium satellite SBD9602.
Atmega128a is 8 Low-Power CMOS microprocessors based on the AVRRISC structure.Because its advanced instruction set and one-cycle instruction execution time, the data throughput of Atmega128a is up to 1mips/MHz, thereby can alleviate the contradiction of system between power consumption and processing speed.ATmega128 has following characteristics: the In-System Programmable Flash of 128K byte (has the ability that in the process of writing, can also read; Be RWW), two line interface TWI of the SRAM of the EEPROM of 4K byte, 4K byte, 53 universaling I/O port lines, 32 general purpose working registers, real-time clock RTC, 4 timer/counters (T/C) that have comparison pattern and PWM function flexibly, two USART, byte-oriented, 8 path 10 position ADC (having optional programmable-gain), programmable watchdog timer, SPI serial port, the jtag test interface (this interface simultaneously can also be used for sheet on debug) compatible with the IEEE1149.1 standard with sheet internal oscillator, and the six kinds of battery saving modes that can select through software.CPU quits work during idle pulley, and SRAM, T/C, SPI port and interrupt system work on; Crystal oscillator failure of oscillations during power-down mode, all functions all quit work except interruption and hardware reset, and the content of register then keeps always; Nonsynchronous timer continues operation during battery saving mode, and to allow user's benchmark of holding time, other parts of device then are in sleep state; CPU is out of service with all I/O modules during ADC squelch pattern, and nonsynchronous timer and ADC work on, the switching noise when changing to reduce ADC; Oscillator work during the Standby pattern and other partial sleeps make device only consume few electric current has quick startup ability simultaneously; Expansion Standby pattern then allows oscillator and nonsynchronous timer to work on.
Required warp, Position Latitude data are stored and filtered out to the gps data of 2 pairs of receptions of microcontroller; When the track walker asked to call for help, one group of warp, Position Latitude data that microcontroller 2 will receive were recently formed a distress call packet and are sent through wireless communication module 3; After control center receives the data of wireless communication module 3 transmissions, can show the concrete geographic position such as longitude and latitude at track walker place through Google Earth.
Google Earth can freely supply the individual to check satellite image, map, and landform, the 3D buildings is from the ocean, valley of the galaxy in outer space.The image definition in most of areas is all about 5 miles.Almost each national capital all provides comparatively distinct image with main big city, has the sharpness of 0.15 mile (241.4016 meters) basically.It can show local weather conditions in real time, rains, blow, and thunder and lightning, it is perfectly clear that temperature can both show.These characteristics are used among the present invention very, and clear and accurate demonstrates the residing longitude and latitude of line walking distress personnel; And the weather condition on this ground and geographical environment; With the distress personnel of can suing and labouring timely and accurately, guaranteed the polling transmission line management effectively and ensured the personnel's that patrol and examine personal safety.
4 pairs of microcontrollers of warning button 2 send alerting signal, the mode that can adopt manual triggers or send automatically.
This embodiment sends positional information at no public network signal covering area through the integrated private radio communication module of self rescue beacon.
Positional information realizes the location by GPS module 1 is positioned at the sky of the 20200km apart from the face of land through acceptance 24 satellite-signals; GPS module 1 can constantly be sent to control microcontroller 2 to the navigator fix information that receives and calculate through asynchronous serial port; Microcontroller 2 receives the GPS navigation locator data through interrupt mode, and is cached in the internal memory.Desired position, directional data etc. are confirmed in microcontroller 2 form search according to information in this buffer zone.Determined positional information sends to through the integrated private radio communication module of rescue beacon on the computer of contiguous and other rescue beacons or rescue center and shows.
Embodiment two: below in conjunction with Fig. 1 this embodiment is described, this embodiment is for to the further specifying of embodiment one, and it also comprises keyboard 5 and display 6 are set,
The preset signal output terminal that keyboard 5 is set connects the preset signal input end of microcontroller 2, and the shows signal output terminal of microcontroller 2 connects the shows signal input end of display 6.
12864 display modules are to instruct through many different uses to accomplish the control to 12864, and different instruction is accomplished different functions.The user instruction collection comprises basic instruction set and extended instruction set.Before module was being accepted instruction, microprocessor must confirm that earlier inside modules is in non-busy condition, and BF is 0 when promptly reading the BF sign, can accept new instruction; If before seeing an instruction off, do not check the BF sign, in the middle of previous instruction and this instruction, must postpone one section so than the long time, promptly be to wait for that previous instruction is complete really.In addition, RE is the selection control bit of basic instruction set and extended instruction set, and behind change RE bit, instruction set backward will maintain last state, only if at this change RE bit, otherwise when using the same instructions collection, does not need to reset the RE bit at every turn.
The demonstration of 12864 display modules is RAM (DDRAM); Display data RAM provides the space of 64 * 2 bit groups; The Chinese font that can control 4 row, 16 words (64 words) at most shows, when writing display data RAM, can show the font of CGROM, HCGROM and CGRAM respectively; ST7920A can show three kinds of fonts; Be respectively HCGROM font, CGRAM font and the Chinese CGROM font of half-breadth; The selection of three kinds of fonts; Selected by the coding that in DDRAM, writes, in the coding of 0000H-0006H, will combine next bit group automatically, the coding of forming two bit groups is reached the coding (A140-D75F) of Chinese font.
Embodiment three: this embodiment is for to the further specifying of embodiment one or two, and wireless communication module 3 adopts the SBD9602 or the N606 of iridium satellites.
The SBD9602 of iridium satellite has only the matchbox size, and it does not have blind area, the whole world to cover, and the communication cost cost is low; Maximum 340 bytes of upstream data bag in the short data transmission, following behavior 270 bytes, low in energy consumption; Can realize duplex data transmission; Dwindled 69% than the first generation " iridium 9601 " SBD modulator-demodular unit simultaneously, weight saving 74%, cost is also cheaper.Another special performance of " iridium 9602 " GPS input/output end port that has been built-in can make system integration device be connected with external gps receiver, and GPS and iridium SBD use same bimodulus L-band antenna, have saved the cost of an antenna.The bi-directional data link that " iridium 9602 " provides will realize communicating by letter with the bilateral exchange of remote-control device, allow the user to adapt unit program, adjust its report at interval, send the request that detailed data is upgraded as required.In addition, " iridium 9602 " can also be realized answering machine first and search and rescue the emergency message that mechanism's response is sent by personnel positioning and tracking means.It supports bidirectional data transfers.Be applicable to data acquisition and control various unattended duties, that existing ground communications network signal can't cover the region.Be applied to foreign-going ship, worldwide travel vehicle or carry out ground such as high mountain, desert, isolated island, glacier and explore the secret that follow the tracks of the location of instruments such as vehicle or boats and ships of expedition or the application of data transmission.
The space segment of GPS is formed (21 work satellites by 24 satellites; 3 backup satellites), it is positioned at the sky of the 20200km apart from the face of land, is evenly distributed on (4 of each orbital planes) on 6 orbital planes, and orbit inclination is 55.。The distribution of satellite makes in the whole world Anywhere, all can observe the satellite more than 4 any time, and the navigation information that can in satellite, prestore.The GPS function must possess GPS terminal, transmission network and three key elements of monitor supervision platform, and these three key elements are indispensable.
The ultimate principle of GPS module 1:
The ultimate principle of GPS navigation system is to measure the satellite of known location to the distance between the receiver user, and the data of comprehensive multi-satellite are just known the particular location of receiver then.Reach this purpose, the position of satellite can be found in satellite ephemeris according to the time that spaceborne clock write down.The user then propagates into the time that the user experiences through the record satellite-signal to the distance of satellite; Again it multiply by the light velocity and obtain (because the ionospheric interference of atmospheric envelope; This distance is not the actual distance between user and the satellite; But pseudorange (PR): when the gps satellite operate as normal, pseudo-random code (abbreviation pseudo-code) the emission navigation message that can constantly form with 1 and 0 binary element.The pseudo-code one that gps system uses has two kinds, is respectively civilian C/A sign indicating number and military P (Y) sign indicating number.C/A code frequency 1.023MHz, one millisecond of repetition period, intersymbol is equivalent to 300m apart from 1 microsecond; P code frequency 10.23MHz, 266.4 days repetition periods, intersymbol is equivalent to 30m apart from 0.1 microsecond.And the Y sign indicating number is on the basis of P sign indicating number, to form, and security performance is better.Navigation message comprises information such as satellite ephemeris, working condition, clock correction, ionospheric delay correction, atmospheric refraction correction.It is that rectification comes out from satellite-signal, is modulated at 50b/s and launches on the carrier frequency.Comprise the every frame length 6s of 5 sub-frame in each prime frame of navigation message.Each 10 character code of first three frame; Per 30 seconds repeat once, per hour upgrade once.Back two frames are 15000b altogether.Content in the navigation message mainly contains telemetry code, hand over word, the 1st, 2,3 data blocks, and wherein most important then is almanac data.When the user receives navigation message; Extract satellite time and its clock with oneself is done the distance that contrast just can be learnt satellite and user; Present position when utilizing satellite almanac data in the navigation message to extrapolate the satellites transmits text again, the information such as position and speed of user in the WGS-84 earth coordinates just can be learnt.
It is thus clear that the effect of GPS navigation system satellite portion is exactly constantly to launch navigation message.Yet; Because clock and satellite carried clock that user's receiver uses can not be always synchronous; So except user's three-dimensional coordinate x, y, z, also will introduce a Δ t and be mistiming between satellite and the receiver, with 4 equations these 4 unknown numbers separated out then as unknown number.If, want to receive the signal of 4 satellites at least so wonder the residing position of receiver.
The GPS receiver can receive the accurate temporal information to nanosecond that can be used for time service; Be used to forecast the forecast ephemeris of satellite general location of living in coming few months; The broadcast ephemeris of required co-ordinates of satellite when being used for compute location, precision are several meters to tens meters (each satellite is different, changes at any time); And gps system information, like satellite situation etc.
The GPS receiver just can obtain the distance of satellite to receiver to the measurement of sign indicating number, owing to contain the error and the atmospheric propagation error of receiver satellite clock, so be called pseudorange.The pseudorange that the 0A sign indicating number is recorded is called UA sign indicating number pseudorange, and precision is about about 20 meters, and the pseudorange that the P sign indicating number is recorded is called P sign indicating number pseudorange, and precision is about about 2 meters.
The satellite-signal of GPS receiver to receiving decoded or adopted other technology, after the information on the carrier wave of being modulated at is removed, and just can the reinsertion of carrier.Strict, carrier phase should be called as carrier wave beat frequency phase place, and it is that the satellite signal carrier phase place and the receiver local oscillation that influenced by Doppler shift received produce the poor of signal phase.Generally measure constantly in the epoch that the receiver clock is confirmed; Maintenance is to the tracking of satellite-signal; Just can note the changing value of phase place, but the receiver when beginning to observe and the phase place initial value of satellite oscillator are ignorant, the phase place integer of initial epoch also is ignorant; Be integer ambiguity, can only be as parameter calculation in data processing.The precision of phase observations value is high to millimeter, but prerequisite is to solve integer ambiguity, therefore only could use the phase observations value at relative positioning and when one section continuous measurements is arranged, and also can only adopt the phase observations value and will reach the bearing accuracy that is superior to meter level.
By locator meams, the GPS location is divided into single-point location and relative positioning (difference location).Single-point location is exactly a mode of confirming receiver location according to the observation data of a receiver, and it can only adopt pseudo range observed quantity, can be used for the summary navigator fix of car and boat etc.Relative positioning (difference location) is a method of confirming the relative position between the observation station according to the observation data of two above receivers; It both can adopt pseudo range observed quantity also can adopt the phase observations amount, and geodetic surveying or engineering survey all should adopt the phase observations value to carry out relative positioning.
The clock correction, atmospheric propagation delay, the multipath effect equal error that in the GPS observed quantity, have comprised satellite and receiver; When location Calculation, also to receive the influence of satellite broadcasting ephemeris error; Most of common error is cancelled or weakens when carrying out relative positioning; Therefore bearing accuracy will improve greatly, and dual-frequency receiver can be offset the major part of ionospheric error in the atmosphere according to the observed quantity of two frequencies, and is high in accuracy requirement; When distance is far away between receiver (atmosphere has significant difference), should select dual-frequency receiver for use.
Embodiment four: below in conjunction with Fig. 1 and Fig. 2 this embodiment is described, this embodiment is the open-air line walking of the electric power calling method in danger based on the open-air line walking of embodiment one, two or three said electric power rescue beacon in danger,
It may further comprise the steps:
Step 1: GPS module 1 real-time receiving satellite positioning signals also calculates navigator fix information, is sent to microcontroller 2 through asynchronous serial port;
Step 2: microcontroller 2 adopts interrupt mode to receive navigator fix information, and detects whether receive alerting signal simultaneously, when receiving alerting signal, and execution in step three;
Step 3: last group navigator fix information that microcontroller 2 will receive sends to wireless communication module 3, and sends wireless distress call through this wireless communication module 3.
The said calling method of this embodiment can be realized the networking operation of calling for help and searching and rescuing, and calling for help information can be accepted and shows by other rescue beacons in 5 kms, realizes that the multiple redundancy of calling for help information is accepted, and increases and calls for help transmission reliability.
Transmission line of electricity is the important component part of electric system, and the personal safety that personnel are patrolled and examined in polling transmission line management and guarantee is an element task that effectively guarantees transmission line of electricity and device security thereof.The present invention has guaranteed track walker's personal safety, when it faces a danger, can impose rescue timely and effectively to it.
The inventive method can adopt VC language gps satellite location and reception information and upper computer software to show the latitude and longitude information structure program, makes every effort to improve the degree of accuracy of location.The basic thought of this program is: atmega128a reads the data of GPS module 1 output through UARTO; The content of Monitoring Data is analyzed and is obtained the required data of system, the for example longitude and latitude of current location; The date Hour Minute Second; Sea level elevation, speed, current satellite number that has connected and positional precision etc.Microcontroller 2 stores and is presented on the display 612864LCD after the data content that obtains is handled.Designer's machine interactive interface makes the user to confirm through carrying out page turning by key control simultaneously, returns, and sends message, receives operations such as message.When needs sent message or receive message, single-chip microcomputer utilized the AT instruction to realize sending the function that receives message and read message through UART1 control satellite communication module SBD9602.Thereby the allomeric function of the system of realization.
When program begins; Microcontroller atmega128a is to display 612864LCD, gps satellite locating module and the initialization of iridium satellite SBD9602 communication module in the system; Gps satellite locating module and azimuth indicator carry out work simultaneously afterwards, and whether their detection at any time have distress signal to send and select corresponding network, when call request signal is sent; Microcontroller 2 will obtain up-to-date warp from internal memory, Position Latitude information is encoded; Detect afterwards whether carrier wave is arranged, when carrier wave, just wait for the coding of next new call request information, if do not have carrier wave then continue to transmit data to line walking and search and rescue in the car; After the information battery has fired, return next step that detect network and carry out work, the work that so goes round and begins again.
Rescue beacon according to the invention is a employing GPS, the location calling device that a radio frequency receipts/module and Low Power Embedded Microprocessor merge; Do not move the reality of GSM signal to some areas; Having designed network signal selects and detection module; Make this device not receive the restriction of signal of communication network range, call signal still can be launched reliably, and this device can also expand navigation feature simultaneously; Be used for search-and-rescue work etc.; This do not receive signal of communication network range restriction, based on the equipment of GPS technology and wireless communication technology, be implemented in the geographic position and the calling for help information that do not have under the situation that the public network signal covers distress personnel and reliably be sent to the command and management center, also can receive information or instruction that the command and management center issues; Personal safety to electric power field work personnel has very important meaning, for the safety of transmission line of electricity and equipment thereof provides powerful guarantee.
The present invention adopts gps satellite location, and wide coverage has effectively overcome the limitation of existing calling method.
The SBD9602 satellite communication of iridium satellite realizes bidirectional data communication, and built-in GPS input/output end port can make system integration device be connected with external gps receiver, and this module quality is light simultaneously, and volume is little, is easy to carry.
The ATMEGA128A microcontroller, high-performance, low-power consumption, instruction execution speed is fast.
The present invention combines The present computer technology and radio satellite mechanics of communication, to polling transmission line management with ensure that the personnel's that patrol and examine personal safety calls for help timely and effectively.Therefore, no matter at technical elements, still at economic aspect, and system construction aspect all is feasible.
Through experiment test, confirm that setting accuracy of the present invention is high, accurate positioning, its communication function and positioning function satisfy request for utilization.Realized the locating and monitoring of control center to the track walker, the transmission that can under the situation that does not have the public network signal to cover, carry out information receives.
The present invention can guarantee the track walker when remote local work, also can be in time and control center get in touch.When the track walker is in danger, can send distress signal timely, needn't be because of range of control limited or have or not public network to cover and make and can't in time send distress signals, make control center take rescue action fast, the rescue distress personnel.
This shows that the present invention is fit to be applied in the outdoor sports such as electric power line walking very much.It is convenient for carrying, and global location to the no requirement (NR) of public network signal, makes open-air personnel and control center in time carry out information interchange, is beneficial to the rescue of open-air distress personnel, has guaranteed its personal safety.
Claims (4)
1. the open-air line walking of electric power rescue beacon in danger, it is characterized in that: it comprises GPS module (1), microcontroller (2), wireless communication module (3) and warning button (4),
GPS module (1) is used for receiving satellite positioning signals; The positioning signal output terminal of GPS module (1) connects the positioning signal input end of microcontroller (2); The alerting signal input end of microcontroller (2) connects the alarm signal output ends of warning button (4), and the alerting signal of microcontroller (2) and locator data are carried out telecommunication through wireless communication module (3) with control center.
2. the open-air line walking of electric power according to claim 1 rescue beacon in danger is characterized in that: it also comprises keyboard (5) and display (6) is set,
The preset signal output terminal that keyboard (5) is set connects the preset signal input end of microcontroller (2), and the shows signal output terminal of microcontroller (2) connects the shows signal input end of display (6).
3. the open-air line walking of electric power according to claim 1 and 2 rescue beacon in danger, it is characterized in that: wireless communication module (3) adopts the SBD9602 or the N606 of iridium satellite.
4. the open-air line walking of electric power calling method in danger based on the open-air line walking of the said electric power of claim 1 rescue beacon in danger is characterized in that:
It may further comprise the steps:
Step 1: the real-time receiving satellite positioning signals of GPS module (1) also calculates navigator fix information, is sent to microcontroller (2) through asynchronous serial port;
Step 2: microcontroller (2) adopts interrupt mode to receive navigator fix information, and detects whether receive alerting signal simultaneously, when receiving alerting signal, and execution in step three;
Step 3: last group navigator fix information that microcontroller (2) will receive sends to wireless communication module (3), and sends wireless distress call through this wireless communication module (3).
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