CN103344975A - Ship-mounted positioning device based on Beidou positioning and iridium communication - Google Patents
Ship-mounted positioning device based on Beidou positioning and iridium communication Download PDFInfo
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- CN103344975A CN103344975A CN2013102782653A CN201310278265A CN103344975A CN 103344975 A CN103344975 A CN 103344975A CN 2013102782653 A CN2013102782653 A CN 2013102782653A CN 201310278265 A CN201310278265 A CN 201310278265A CN 103344975 A CN103344975 A CN 103344975A
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Abstract
The invention relates to a ship-mounted positioning device based on Beidou positioning and iridium communication. The ship-mounted positioning device comprises a power circuit, a JTAG program downloading interface, a serial port debugging circuit, an iridium module satellite communication circuit, a leading double-mode satellite positioning circuit, a main control circuit and an externally-arranged interface circuit. The power circuit comprises a primary power source changeover chip IC1 and a secondary changeover chip IC2. The JTAG program downloading interface comprises a 2*5 connector assembly JTAG1. The serial port debugging circuit comprises a level changeover chip IC3. The iridium module satellite communication circuit comprises an iridium communication chip IC4. The leading double-mode satellite positioning circuit comprises a Beidou satellite positioning chip IC5. The ship-mounted positioning device can be carried on any ship system provided with a 12V external power source, real-time monitoring with global coverage can be achieved, the operational position and the operational speed of the ship system can be tracked, and the double-direction communication function, namely the function of sending an abnormal alarm or a remote alarming command, between the ship-mounted positioning device and a server can be achieved.
Description
Technical field
The invention belongs to satnav and communication technical field, be specifically related to big-dipper satellite location and iridium satellite satellite communication equipment that a kind of boat-carrying is used.
Background technology
In recent years, whole world water transport, sea-freight industry have obtained developing rapidly, but because present water safety poor infrastructure, manage still lack of standardization, overload, scramble for roads, emit situations such as mist navigation, separated boat to happen occasionally, thereby cause shipwreck, shipwreck, crash, security incident such as dark hole under water, caused the tremendous economic loss, bring serious harm safely for simultaneously people's life.At present, also there is not a kind of boat-carrying safety monitoring system that is suitable for various use occasions such as harbour, coastal waters, inland water transport, off-lying sea transportation, in order to improve waterborne traffic management and scheduling level, avoid the generation of overwater accident, increase management intensity, press for a kind of boat-carrying positioning system that can cover China's scope and even global range.
After the end of the eighties, the nineties, because the emergence of optical fiber communication and terrestrial cellular mobile communication, cost, anti-tampering sexuality are still transmitted the lifting that the quantity of information size has all had matter, so the positioning system of routine extensively adopts the GPRS mobile communication at present.Consider the technical costs problem of optical fiber communication and terrestrial cellular mobile communication, wired optical fiber or wireless GPRS mobile communication can not cover each corner in the world fully, lake for example, the ocean, interpersonal rare place extremely such as desert, and satellite communication can replenish the not enough of other means of communication or can not effectively.The iridium satellite mobile communication system is a kind of global satellite mobile communication system that U.S. Iridium LLC entrusts Motorola Inc.'s design, can realize communication effectively in the world, ocean especially, and it is more obvious that interpersonal rare its effect of place extremely such as polar region highlights.On the other hand, no matter in navigation, detect, report to the police, still in the tracing system, the location is absolutely necessary, and main satnav has the big-dipper satellite positioning system of GPS of USA, Russia's " GLONASS ", European Union's " Galileo " and China's independent research in recent years.Wherein the GPS of USA system global covers wide, the bearing accuracy height, and be to provide free positioning service and be widely used, and the big-dipper satellite positioning system of China's independent research is except the location, time service, outside the speed measuring function, also increased the short message communication function newly, and the bimodulus location navigation that adopts the Big Dipper to combine with GPS can improve accuracy requirement more.
At present, the boat-carrying positioning system is compared vehicle positioning system traditional on the market, provides for the user outside the effect of navigation, also will consider the distinctive environmental factor of boat-carrying positioning system.Under rivers and lakes, river, marine environment, always have objective factors such as some storms, submerged reef, shallow point even pirate or neighbouring country's conflict and exist, so ship to compare the risk of car higher.The still navigation feature that traditional boat-carrying positioning system mainly realizes can't realize the feedback communication function, and is relatively weak for burst early warning, warning function, and server also can't the current vessel's position of real-time tracing and the overshoot scope of the voyage whether.Also there is part can realize intercoming mutually with server based on the boat-carrying positioning system of wireless GPRS mobile communication, but also has limitation, in the scope that mobile communication signal can't cover, just can't work normally.The present invention is based on restriction and the weak point of present boat-carrying positioning system, the boat-carrying positioning system that provides a kind of energy to intercom mutually with server in real time and can scope covering the whole world, in the remote districts that mobile communication signal can't cover, more seem particularly important as application scenarios such as polar region, off-lying seas.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of whole world covering iridium satellite communication and Big Dipper gps satellite bimodulus location of utilizing that the real-time longitude and latitude position of boats and ships, the boat-carrying positioning equipment of abnormal alarm signal are provided.
The present invention includes power circuit, JTAG program download interface, AccessPort circuit, iridium satellite module satellite communication circuit, authority's bimodulus satnav circuit and governor circuit and peripheral interface circuit.
Power circuit comprises one-level power conversion chip IC1, secondary conversion chip IC2, three electrochemical capacitor C1, C2, C3, two patch capacitor C4, C5, a chip inductor L1, a fuse F1, a diode D1, two schottky diode D2, D3, a light emitting diode LED1, a Chip-R R1.The pin 1 of one-level power conversion chip IC1 links to each other with the negative electrode of diode D1, and the negative electrode of diode D1 is connected the other end ground connection of the negative electrode of electrochemical capacitor C1 and patch capacitor C4 with the anode of electrochemical capacitor C1 and the end of patch capacitor C4.The anode of diode D1 links to each other with schottky diode D2 negative electrode with the end of fuse F1, and the other end of fuse F1 connects the 12V voltage source, the plus earth of schottky diode D2.Pin 1 ground connection of the pin 3 of one-level power conversion chip IC1, pin 5 and secondary conversion chip IC2.The pin 2 of one-level power conversion chip IC1 links to each other the plus earth of schottky diode D3 with an end of the negative electrode of schottky diode D3 and inductance L 1.The other end of inductance L 1 links to each other the other end ground connection of the negative electrode of electrochemical capacitor C2 and patch capacitor C5 with the anode of electrochemical capacitor C2 and the end of patch capacitor C5.The anode of electrochemical capacitor C2 links to each other with the pin 4 of one-level power conversion chip IC1, and the pin 4 of one-level power conversion chip IC1 links to each other with the pin 3 of secondary conversion chip IC2, is the 5V power supply of system.The pin 2 of secondary power supply conversion chip IC2 is the 3.3V power supply of system, link to each other with Chip-R R1 one end with the anode of electrochemical capacitor C3, the other end of Chip-R R1 links to each other with the anode of light emitting diode LED1, the negative electrode of LED 1 and electrochemical capacitor C3 plus earth.
JTAG program download interface comprises the connector JTAG1 of a 2*5, resistance R 2, and R3, R4, R5, R6, R7 forms.Pin 1 and the pin 2 of connector JTAG1 connect the 3.3V power supply, and the pin 3 of connector JTAG1 connects the pin 7 of main control chip IC6 and an end of resistance R 4, resistance R 4 another termination 3.3V power supplys.The pin 4 of connector JTAG1 connects the pin 40 of main control chip IC6 and an end of resistance R 5, resistance R 5 another termination 3.3V power supplys.The pin 5 of connector JTAG1 connects the pin 38 of main control chip IC6 and an end of resistance R 3, resistance R 3 another termination 3.3V power supplys.The pin 6 of connector JTAG1 connects the pin 39 of main control chip IC6 and an end of resistance R 6, resistance R 6 another termination 3.3V power supplys.The pin 7 of connector JTAG1 connects the pin 34 of main control chip IC6 and an end of resistance R 2, resistance R 2 another termination 3.3V power supplys.The pin 9 of connector JTAG1 connects the pin 37 of main control chip IC6 and an end of resistance R 7, resistance R 7 other end ground connection.The pin 8 of connector JTAG1 is unsettled, pin 10 ground connection of connector JTAG1.
The AccessPort circuit is made up of level transferring chip IC3, patch capacitor C6, C7, C8, C9, C10.The 15 pin ground connection of level transferring chip IC3.The pin 16 of level transferring chip IC3 links to each other with the 3.3V power supply with the end of patch capacitor C6, the other end ground connection of patch capacitor C6.The pin 1 of level transferring chip IC3 links to each other with the end of patch capacitor C9, the pin 3 of another termination level transferring chip IC3 of patch capacitor C9.The pin 4 of level transferring chip IC3 links to each other with the end of patch capacitor C10, the pin 5 of another termination level transferring chip IC3 of patch capacitor C10.The pin 2 of level transferring chip IC3 links to each other with the end of patch capacitor C7, the other end ground connection of patch capacitor C7.The pin 6 of level transferring chip IC3 links to each other with the end of patch capacitor C8, the other end ground connection of patch capacitor C8.The pin 9 of level transferring chip IC3 links to each other with the pin 22 of main control chip IC6, and the pin 10 of level transferring chip IC3 links to each other with the pin 21 of main control chip IC6.The pin 7,8 of level transferring chip IC3 connects the pin 2,1 of the connector P1 in governor circuit and the peripheral interface circuit respectively.Other pins of level transferring chip IC3 are unsettled.
Iridium satellite module satellite communication circuit is by iridium satellite communication chip IC4, resistance R 8, R9, light emitting diode D4, and antenna J1 and patch capacitor C11, C12, C13, C14, C15 form.22 pins of iridium satellite communication chip IC4 link to each other with 1 pin of antenna J1,2 ~ 5 pin ground connection of antenna J1.The pin 20 of iridium satellite communication chip IC4 links to each other with an end of resistance R 8, and the other end of resistance R 8 links to each other with the anode of light emitting diode D4, light emitting diode D4 plus earth.The pin 19 of iridium satellite communication chip IC4 links to each other with an end of resistance R 9, and 16 pins that another termination IC4_19 of resistance R 9, IC4_19 meet main control chip IC6 link to each other.The pin 3,4,8,15 of iridium satellite communication chip IC4,18 ground connection, the pin 13 of iridium satellite communication chip IC4 links to each other with 32 pins of main control chip IC6, and the pin 11 of iridium satellite communication chip IC4 links to each other with 33 pins of main control chip IC6.The pin 5 of iridium satellite communication chip IC4 links to each other with the pin 17 of main control chip IC6.The pin 6 of iridium satellite communication chip IC4 links to each other with the pin 31 of main control chip IC6.The pin 7 of iridium satellite communication chip IC4 links to each other with pin 30 pins of main control chip IC6.The pin 1,2 of iridium satellite communication chip IC4 connects the end of 5V power supply and patch capacitor C11, C12, C13, C14, C15, the other end ground connection of patch capacitor C11, C12, C13, C14, C15.Other pins of iridium satellite communication chip IC4 are unsettled.
Authority's bimodulus satnav circuit is made up of big-dipper satellite positioning chip IC5, Big Dipper antenna J2, button cell BT1, paster field effect transistor Q1, diode D5, three resistance R 10, R11, R12 and three patch capacitor C16, C17, C18.The pin 7,13,14,15 of big-dipper satellite positioning chip IC5,17 ground connection.The pin 3 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 11, another termination IC5_3 of resistance R 11, and IC5_3 connects the pin 13 of main control chip IC6.The pin 4 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 12, another termination IC5_4 of resistance R 12, and IC5_4 connects the pin 12 of main control chip IC6.The pin 5,10,28 of big-dipper satellite positioning chip IC5 links to each other with the pin 25,26,46 of main control chip IC6 respectively.The pin 6 of big-dipper satellite positioning chip IC5 links to each other with GPS_3V3, and GPS_3V3 links to each other with the source electrode of paster field effect transistor Q1, and GPS_3V3 links to each other with the end of patch capacitor C16, C17, C18, the other end ground connection of patch capacitor C16, C17, C18.The drain electrode of field effect transistor Q1 connects the 3.3V power supply.The grid of paster field effect transistor Q1 links to each other with the pin 18 of main control chip IC6.The pin 16 of big-dipper satellite positioning chip IC5 links to each other with Big Dipper antenna J2.The pin 18 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 10, and the other end of resistance R 10 links to each other with the pin 19 of big-dipper satellite positioning chip IC5.The pin 11 of big-dipper satellite positioning chip IC5 links to each other with the negative electrode of diode D5, and the anode of diode D5 links to each other with the positive pole of button cell BT1, the minus earth of button cell BT1.Other pins of big-dipper satellite positioning chip IC5 are unsettled.
Governor circuit and peripheral interface circuit comprise main control chip IC6, crystal oscillator Y1,1, one light emitting diode D6 of switch S, three utmost point pipe Q2, Q3, Q4, connector P1, the P2 of two 7 interfaces, eight Chip-R R13, R14, R15, R16, R17, R18, R19, R20, seven resistance R 21, R22, R23, R24, R25, R26, R27,12 patch capacitor C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30 form.The pin 1,9,24,36,48 of main control chip IC6 connects the 3.3V power supply.The direct ground connection of 23,35,44,47 pins of main control chip IC4.The pin 5 of main control chip IC6 links to each other the other end ground connection of patch capacitor C19 with the end of the end of crystal oscillator Y1 and patch capacitor C19.The pin 6 of main control chip IC6 links to each other the other end ground connection of patch capacitor C20 with the end of the other end of crystal oscillator Y1 and patch capacitor C20.The pin 7 of main control chip IC6 links to each other with the end of Chip-R R13, another termination 3.3V power supply of Chip-R R13.The pin 7 of main control chip IC6 links to each other the other end ground connection of the other end of switch S 1 and patch capacitor C21 with the end of an end of switch S 1 and patch capacitor C21.The pin 8 of main control chip IC6 connects with patch capacitor C30 one end and links to each other, patch capacitor C30 other end ground connection.The pin 10 of main control chip IC6 links to each other with the end of resistance R 21 and R22, the other end ground connection of resistance R 22, and the other end of resistance R 21 links to each other with the pin 6 of connector P2.The pin 11 of main control chip IC6 links to each other with the end of resistance R 23 and R24, the other end ground connection of resistance R 24, and the other end of resistance R 23 links to each other with the pin 4 of connector P2.The pin 12,13 of main control chip IC6 meets IC5_4, IC5_3 respectively.The pin 16 of main control chip IC6 meets IC4_19.The pin 17 of main control chip IC6 links to each other with the pin 5 of iridium satellite communication chip IC4.The pin 18 of main control chip IC6 links to each other with the grid of paster field effect transistor Q1.The pin 19 of main control chip IC6 links to each other with the end of resistance R 26, R27, the other end ground connection of R26, and the other end of R27 links to each other with the pin 7 of connector P1.The pin 20 of main control chip IC6 links to each other with an end of resistance R 25, the other end ground connection of R25.The pin 21,22 of main control chip IC6 links to each other with the pin 10,9 of level transferring chip IC3 respectively.The pin 25,26 of main control chip IC6 links to each other with the pin 5,10 of big-dipper satellite positioning chip IC5 respectively.The pin 30,31,32,33 of main control chip IC6 links to each other with the pin 7,6,13,11 of iridium satellite communication chip IC4 respectively.The pin 34,37,38 of main control chip IC6,39 links to each other with the pin 7,9,5,6 of connector JTAG1.The pin 41 of main control chip IC6 links to each other with Chip-R R15 one end, the Chip-R R15 other end links to each other with the base stage of triode Q2, the emitter of triode Q2 links to each other with the end of Chip-R R18, and the other end of Chip-R R18 links to each other with the pin 1 of connector P2.The pin 42 of main control chip IC6 links to each other with Chip-R R16 one end, the Chip-R R16 other end links to each other with the base stage of triode Q3, the emitter of triode Q3 links to each other with the end of Chip-R R19, and the other end of Chip-R R19 links to each other with the pin 2 of connector P2.The pin 43 of main control chip IC6 links to each other with Chip-R R17 one end, the Chip-R R17 other end links to each other with the base stage of triode Q4, the emitter of triode Q4 links to each other with the end of Chip-R R20, and the other end of Chip-R R20 links to each other with the pin 3 of connector P2.The grounded collector of triode Q2, Q3, Q4.The pin 45 of main control chip IC6 links to each other with the end of Chip-R R14, and the other end of resistance R 14 links to each other with the anode of light emitting diode D6, the plus earth of light emitting diode D6.3.3V power supply links to each other with the end of patch capacitor C22 ~ C29, the other end ground connection of patch capacitor C22 ~ C29.Other pins of main control chip IC6 are unsettled.
Equipment involved in the present invention can carry arbitrary marine system that possesses outside 12V power supply, can realize the real-time monitoring that the whole world covers, follow the trail of the Position And Velocity of its operation, and possess and server between bi-directional communication function, as sending the instruction of abnormal alarm or remote alarms.The boat-carrying positioning system that a kind of energy provided by the invention intercoms mutually with server in real time, can scope covering the whole world in the remote districts that mobile communication signal can't cover, more seems particularly important as application scenarios such as polar region, off-lying seas.
Description of drawings
Fig. 1 is integrated circuit synoptic diagram of the present invention;
Fig. 2 is power circuit synoptic diagram among Fig. 1;
Fig. 3 is JTAG program download interface circuit diagram among Fig. 1;
Fig. 4 is AccessPort circuit diagram among Fig. 1;
Fig. 5 is iridium satellite module satellite communication circuit diagram among Fig. 1;
Fig. 6 is authority's bimodulus satnav circuit diagram among Fig. 1;
Fig. 7 is governor circuit and peripheral interface circuit synoptic diagram among Fig. 1;
Fig. 8 is integrated circuit workflow diagram of the present invention.
Embodiment
The present invention relates generally to a kind of whole world covering iridium satellite communication and Big Dipper gps satellite bimodulus location of utilizing the real-time longitude and latitude position of boats and ships, the boat-carrying positioning equipment of abnormal alarm signal is provided.One aspect of the present invention server can detect relevant informations such as the current location of mobile objects such as boats and ships and safe condition in real time, and server also can send the remote control terminal device by the configuration of dependent instruction simultaneously.
As shown in Figure 1, the present invention includes power circuit 1, JTAG program download interface 2, AccessPort circuit 3, iridium satellite module satellite communication circuit 4, authority's bimodulus satnav circuit 5, governor circuit and peripheral interface circuit 6.
As shown in Figure 2, power circuit 1 comprises one-level power conversion chip IC1, secondary conversion chip IC2, three electrochemical capacitor C1, C2, C3, two patch capacitor C4, C5, a chip inductor L1, a fuse F1, a diode D1, two schottky diode D2, D3, a light emitting diode LED1, a Chip-R R1.The pin 1 of one-level power conversion chip IC1 links to each other with the negative electrode of diode D1, and the negative electrode of diode D1 is connected the other end ground connection of the negative electrode of electrochemical capacitor C1 and patch capacitor C4 with the anode of electrochemical capacitor C1 and the end of patch capacitor C4.The anode of diode D1 links to each other with schottky diode D2 negative electrode with the end of fuse F1, and the other end of fuse F1 connects the 12V voltage source, the plus earth of schottky diode D2, and the amount electric current of fuse F1 is 3A, is mainly used in overcurrent protection.Schottky diode D2 is mainly used in overvoltage protection.Pin 1 ground connection of the pin 3 of one-level power conversion chip IC1, pin 5 and secondary conversion chip IC2.The pin 2 of one-level power conversion chip IC1 links to each other the plus earth of schottky diode D3 with an end of the negative electrode of schottky diode D3 and inductance L 1.The other end of inductance L 1 links to each other the other end ground connection of the negative electrode of electrochemical capacitor C2 and patch capacitor C5 with the anode of electrochemical capacitor C2 and the end of patch capacitor C5.The anode of electrochemical capacitor C2 links to each other with the pin 4 of one-level power conversion chip IC1, and the pin 4 of one-level power conversion chip IC1 links to each other with the pin 3 of secondary conversion chip IC2, is the 5V power supply of system.The pin 2 of secondary power supply conversion chip IC2 is the 3.3V power supply of system, link to each other with Chip-R R1 one end with the anode of electrochemical capacitor C3, the other end of Chip-R R1 links to each other with the anode of light emitting diode LED1, the negative electrode of LED 1 and electrochemical capacitor C3 plus earth, the main effect of light emitting diode LED1 are the on/off indications.One-level power conversion chip IC1 adopts the LM2576-5 chip of TI Texas Instruments, is 5V voltage with outside 12V voltage transition; Secondary power supply chip IC 2 adopts the AMS1117 chip of AMS company, is 3.3V voltage with the 5V voltage transition.
As shown in Figure 3, JTAG program download interface 2 comprises the connector JTAG1 of a 2*5, resistance R 2, and R3, R4, R5, R6, R7 forms.Pin 1 and the pin 2 of connector JTAG1 connect the 3.3V power supply, and the pin 3 of connector JTAG1 connects the pin 7 of main control chip IC6 and an end of resistance R 4, resistance R 4 another termination 3.3V power supplys.The pin 4 of connector JTAG1 connects the pin 40 of main control chip IC6 and an end of resistance R 5, resistance R 5 another termination 3.3V power supplys.The pin 5 of connector JTAG1 connects the pin 38 of main control chip IC6 and an end of resistance R 3, resistance R 3 another termination 3.3V power supplys.The pin 6 of connector JTAG1 connects the pin 39 of main control chip IC6 and an end of resistance R 6, resistance R 6 another termination 3.3V power supplys.The pin 7 of connector JTAG1 connects the pin 34 of main control chip IC6 and an end of resistance R 2, resistance R 2 another termination 3.3V power supplys.The pin 9 of connector JTAG1 connects the pin 37 of main control chip IC6 and an end of resistance R 7, resistance R 7 other end ground connection.The pin 8 of connector JTAG1 is unsettled, pin 10 ground connection of connector JTAG1.JTAG program download interface is connected with downloader, and the program that is used for computer end is downloaded.
As shown in Figure 4, AccessPort circuit 3 is made up of level transferring chip IC3, patch capacitor C6, C7, C8, C9, C10.The 15 pin ground connection of level transferring chip IC3.16 pins of level transferring chip IC3 link to each other with the 3.3V power supply with the end of patch capacitor C6, the other end ground connection of patch capacitor C6.The pin 1 of level transferring chip IC3 links to each other with the end of patch capacitor C9, the pin 3 of another termination level transferring chip IC3 of patch capacitor C9.The pin 4 of level transferring chip IC3 links to each other with the end of patch capacitor C10, the pin 5 of another termination level transferring chip IC3 of patch capacitor C10.The pin 2 of level transferring chip IC3 links to each other with the end of patch capacitor C7, the other end ground connection of patch capacitor C7.The pin 6 of level transferring chip IC3 links to each other with the end of patch capacitor C8, the other end ground connection of patch capacitor C8.The pin 9 of level transferring chip IC3 links to each other with the pin 22 of main control chip IC6, and the pin 10 of level transferring chip IC3 links to each other with the pin 21 of main control chip IC6.The pin 7,8 of level transferring chip IC3 connects the pin 2,1 of the connector P1 in governor circuit and the peripheral interface circuit respectively.Other pins of level transferring chip IC3 are unsettled.AccessPort circuit (3) is mainly used in the status information in the debug process is outputed on the computer, and level transferring chip IC3 adopts the sp3232 chip of Sipex company, is used for the conversion of Transistor-Transistor Logic level and RS232 level.
As shown in Figure 5, iridium satellite module satellite communication circuit 4 is by iridium satellite communication chip IC4, resistance R 8, R9, light emitting diode D4, and antenna J1 and patch capacitor C11, C12, C13, C14, C15 form.22 pins of iridium satellite communication chip IC4 link to each other with 1 pin of antenna J1,2 ~ 5 pin ground connection of antenna J1.The pin 20 of iridium satellite communication chip IC4 links to each other with an end of resistance R 8, and the other end of resistance R 8 links to each other with the anode of light emitting diode D4, light emitting diode D4 plus earth.The pin 19 of iridium satellite communication chip IC4 links to each other with an end of resistance R 9, another termination IC4_19 of resistance R 9, and IC4_19 connects the pin 16 of main control chip IC6.The pin 3,4,8,15 of iridium satellite communication chip IC4,18 ground connection, the pin 13 of iridium satellite communication chip IC4 links to each other with the pin 32 of main control chip IC6, and the pin 11 of iridium satellite communication chip IC4 links to each other with the pin 33 of main control chip IC6.The pin 5 of iridium satellite communication chip IC4 links to each other with the pin 17 of main control chip IC6.The pin 6 of iridium satellite communication chip IC4 links to each other with the pin 31 of main control chip IC6.The pin 7 of iridium satellite communication chip IC4 links to each other with pin 30 pins of main control chip IC6.The pin 1,2 of iridium satellite communication chip IC4 connects the end of 5V power supply and patch capacitor C11, C12, C13, C14, C15, the other end ground connection of patch capacitor C11, C12, C13, C14, C15.Other pins of iridium satellite communication chip IC4 are unsettled.The SBD9602 chip that iridium satellite communication chip IC4 adopts Iridium LLC to produce is used for realizing by the iridium satellite communication mode transmission of short message message, and the short message message format that position data is uploaded is:
@J<1>,?<2>,?<3>,?<4>,?<5>,?<6>?MQQQQQQQQQQQQQQQQ
＜1〉the UTC time, hhmmss (Hour Minute Second) form
＜2〉positioning states, A=effectively locatees, the invalid location of V=
＜3〉latitude ddmm.mmmm (degree divides) form
＜4〉latitude hemisphere N (Northern Hemisphere) or S (the Southern Hemisphere)
＜5〉longitude dddmm.mmmm (degree divides) form
＜6〉longitude hemisphere E (east longitude) or W (west longitude)
Annotate: QQQQQQQQQQQQQQQQ is 16 this machine ID values, not can be sky.
As shown in Figure 6, authority's bimodulus satnav circuit 5 is made up of big-dipper satellite positioning chip IC5, Big Dipper antenna J2, button cell BT1, paster field effect transistor Q1, diode D5, three resistance R 10, R11, R12 and three patch capacitor C16, C17, C18.Satnav chip IC 5 adopts the GPS of authority company independent research and the TD3020C chip of Big Dipper bimodulus.The pin 7,13,14,15 of big-dipper satellite positioning chip IC5,17 ground connection.The pin 3 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 11, another termination IC5_3 of resistance R 11, and IC5_3 connects the pin 13 of main control chip IC6.The pin 4 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 12, another termination IC5_4 of resistance R 12, and IC5_4 connects the pin 12 of main control chip IC6.The pin 5,10,28 of big-dipper satellite positioning chip IC5 links to each other with the pin 25,26,46 of main control chip IC6 respectively.The pin 6 of big-dipper satellite positioning chip IC5 links to each other with GPS_3V3, and GPS_3V3 links to each other with the source electrode of paster field effect transistor Q1, and GPS_3V3 links to each other with the end of patch capacitor C16, C17, C18, the other end ground connection of patch capacitor C16, C17, C18.The drain electrode of field effect transistor Q1 connects the 3.3V power supply.The grid of paster field effect transistor Q1 links to each other with 18 pins of main control chip IC6, is used for control and whether gives big-dipper satellite positioning chip IC5 power supply, can close the big-dipper satellite positioning chip at any time when not needing locator data.The pin 16 of big-dipper satellite positioning chip IC5 links to each other with Big Dipper antenna J2.The pin 18 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 10, and the other end of resistance R 10 links to each other with the pin 19 of big-dipper satellite positioning chip IC5.The pin 11 of big-dipper satellite positioning chip IC5 links to each other with the negative electrode of diode D5, the anode of diode D5 links to each other with the positive pole of button cell BT1, the minus earth of button cell BT1 is used for providing backup battery to big-dipper satellite positioning chip IC5, also can warm start when lacking external power source.Other pins of big-dipper satellite positioning chip IC5 are unsettled.
As shown in Figure 7, governor circuit and peripheral interface circuit 6 comprise main control chip IC6, crystal oscillator Y1, switch S 1, a light emitting diode D6, three utmost point pipe Q2, Q3, Q4, connector P1, the P2 of two 7 interfaces, eight Chip-R R13, R14, R15, R16, R17, R18, R19, R20, seven resistance R 21, R22, R23, R24, R25, R26, R27,12 patch capacitor C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30 form.The STM32F101C8T6 chip that main control chip IC6 adopts ST Microelectronics to produce.The pin 1,9,24,36,48 of main control chip IC6 connects the 3.3V power supply.The direct ground connection of 23,35,44,47 pins of main control chip IC4.The pin 5 of main control chip IC6 links to each other the other end ground connection of patch capacitor C19 with the end of the end of crystal oscillator Y1 and patch capacitor C19.The pin 6 of main control chip IC6 links to each other the other end ground connection of patch capacitor C20 with the end of the other end of crystal oscillator Y1 and patch capacitor C20.The pin 7 of main control chip IC6 links to each other with the end of Chip-R R13, another termination 3.3V power supply of Chip-R R13.The pin 7 of main control chip IC6 links to each other the other end ground connection of the other end of switch S 1 and patch capacitor C21 with the end of an end of switch S 1 and patch capacitor C21.The pin 8 of main control chip IC6 connects with patch capacitor C30 one end and links to each other, patch capacitor C30 other end ground connection.The pin 10 of main control chip IC6 links to each other with the end of resistance R 21 and R22, the other end ground connection of resistance R 22, and the other end of resistance R 21 links to each other with the pin 6 of connector P2.The pin 11 of main control chip IC6 links to each other with the end of resistance R 23 and R24, the other end ground connection of resistance R 24, and the other end of resistance R 23 links to each other with the pin 4 of connector P2.The pin 12,13 of main control chip IC6 meets IC5_4, IC5_3 respectively.The pin 16 of main control chip IC6 meets IC4_19.The pin 17 of main control chip IC6 links to each other with the pin 5 of iridium satellite communication chip IC4.The pin 18 of main control chip IC6 links to each other with the grid of paster field effect transistor Q1.The pin 19 of main control chip IC6 links to each other with the end of resistance R 26, R27, the other end ground connection of R26, and the other end of R27 links to each other with the pin 7 of connector P1.The pin 20 of main control chip IC6 links to each other with an end of resistance R 25, the other end ground connection of R25.The pin 21,22 of main control chip IC6 links to each other with the pin 10,9 of level transferring chip IC3 respectively.The pin 25,26 of main control chip IC6 links to each other with the pin 5,10 of big-dipper satellite positioning chip IC5 respectively.The pin 30,31,32,33 of main control chip IC6 links to each other with the pin 7,6,13,11 of iridium satellite communication chip IC4 respectively.The pin 34,37,38 of main control chip IC6,39 links to each other with the pin 7,9,5,6 of connector JTAG1.The pin 41 of main control chip IC6 links to each other with Chip-R R15 one end, the Chip-R R15 other end links to each other with the base stage of triode Q2, the emitter of triode Q2 links to each other with the end of Chip-R R18, and the other end of Chip-R R18 links to each other with the pin 1 of connector P2.The pin 42 of main control chip IC6 links to each other with Chip-R R16 one end, the Chip-R R16 other end links to each other with the base stage of triode Q3, the emitter of triode Q3 links to each other with the end of Chip-R R19, and the other end of Chip-R R19 links to each other with the pin 2 of connector P2.The pin 43 of main control chip IC6 links to each other with Chip-R R17 one end, the Chip-R R17 other end links to each other with the base stage of triode Q4, the emitter of triode Q4 links to each other with the end of Chip-R R20, and the other end of Chip-R R20 links to each other with the pin 3 of connector P2.The grounded collector of triode Q2, Q3, Q4.The pin 45 of main control chip IC6 links to each other with the end of Chip-R R14, and the other end of resistance R 14 links to each other with the anode of light emitting diode D6, the plus earth of light emitting diode D6.Other pins of main control chip IC6 are unsettled.3.3V power supply links to each other with the end of patch capacitor C22 ~ C29, the other end ground connection of patch capacitor C22 ~ C29.Pin 3 ground connection of the pin 5 of connector P2, connector P1.The pin 1,2 of connector P1 connects the pin 8,7 of level transferring chip IC3 respectively.Connector P1 and P2 are respectively applied to the external power source input, outside master switch, outside red light, green light, loudspeaker output indication, functions such as the various sensor accesses of outside expansion.
Native system software adopts a kind of for the small-scale operating system μ C/OS-II that controls in real time, as shown in Figure 8, the roughly process of program circuit is divided following steps: behind (1) electrification reset, used various peripheral hardwares are carried out initialization and interrupt configuration, this moment, green light was often electric, reminded this equipment of user just in initialization; (2) to μ C/OS-II operating system initialization, the configurable clock generator beat, set up the TCB chained list, related function enables etc.; (3) iridium satellite communication chip IC4 is carried out initial configuration, be set to the transparent transmission pattern; (4) set up need using of task, comprise that idle task, Big Dipper location tasks, iridium satellite send task, warning task dispatching; (5) open big-dipper satellite positioning chip IC5, wait for receiving effective longitude and latitude position data; (6) in a single day receive effective longitude and latitude position data, close the big-dipper satellite module, green light extinguishes, the prompt system initialization is finished, and preserves the positional information that obtains first; (7) beginning μ C/OS-II task scheduling is carried out the highest task of current ready state medium priority.In whole process, the task priority that Big Dipper locator data is handled is higher than the task priority that the iridium satellite satellite sends task.System clock was opened the power supply of big-dipper satellite positioning chip every 5 minutes, began to receive the longitude and latitude position data: when receiving valid data, preserve current data, send data by semaphore notice iridium satellite module satellite communication circuit simultaneously; If confiscate valid data, then send the longitude and latitude position data that last time point is preserved.Iridium satellite module satellite communication circuit is carried out the transmission task by task scheduling when obtaining semaphore, all can't be successful if send 5 times continuously, then restart the iridium satellite module satellite communication circuit of this equipment.In operational process, if when the current alarm button that limit priority arranged is pressed, then the very first time sends abnormal alarm information, reports current position and state.In whole process, Systick ticktock interrupt function is used for improving the timeticks of operating system, for task scheduling necessary.It then is to feed the dog that opens the door that timer interrupts, and after closing global interrupt, can't normally feed the dog that opens the door, and then system restarts.The external alert device is that it is used to report to the police when having emergency case to take place, can the current crisis information of very first time notification server.It then is the longitude and latitude position data that receives authority's bimodulus satnav circuit that serial ports receives interruption.
Power conversion chip IC1, IC2 among the present invention, level transferring chip IC3, iridium satellite communication chip IC4, big-dipper satellite positioning chip IC5, main control chip IC6 all adopt matured product.One-level power conversion chip IC1 adopts the LM2576-5 chip of TI Texas Instruments, secondary power supply chip IC 2 adopts the AMS1117 chip of AMS company, level transferring chip IC3 adopts the sp3232 chip of Sipex company, the SBD9602 chip that iridium satellite communication chip IC4 adopts Iridium LLC to produce, satnav chip IC 5 adopts the GPS of authority company independent research and the TD3020C chip of Big Dipper bimodulus, the STM32F101C8T6 that main control chip IC6 adopts ST Microelectronics to produce.Concrete technical indicator is as follows:
(1) Big Dipper bearing accuracy :≤20m;
(2) Big Dipper positioning time :≤60s;
(3) iridium satellite sends data length :≤340 bytes;
(4) circuit system power consumption: average power≤0.5W, maximum instantaneous power≤1.3W.
Claims (1)
1. locate the boat-carrying positioning equipment of communicating by letter with iridium satellite based on the Big Dipper, comprise power circuit, JTAG program download interface, AccessPort circuit, iridium satellite module satellite communication circuit, authority's bimodulus satnav circuit, governor circuit and peripheral interface circuit, it is characterized in that:
Power circuit comprises one-level power conversion chip IC1, secondary conversion chip IC2, three electrochemical capacitor C1, C2, C3, two patch capacitor C4, C5, a chip inductor L1, a fuse F1, a diode D1, two schottky diode D2, D3, a light emitting diode LED1, a Chip-R R1; The pin 1 of one-level power conversion chip IC1 links to each other with the negative electrode of diode D1, and the negative electrode of diode D1 is connected the other end ground connection of the negative electrode of electrochemical capacitor C1 and patch capacitor C4 with the anode of electrochemical capacitor C1 and the end of patch capacitor C4; The anode of diode D1 links to each other with schottky diode D2 negative electrode with the end of fuse F1, and the other end of fuse F1 connects the 12V voltage source, the plus earth of schottky diode D2; Pin 1 ground connection of the pin 3 of one-level power conversion chip IC1, pin 5 and secondary conversion chip IC2; The pin 2 of one-level power conversion chip IC1 links to each other the plus earth of schottky diode D3 with an end of the negative electrode of schottky diode D3 and inductance L 1; The other end of inductance L 1 links to each other the other end ground connection of the negative electrode of electrochemical capacitor C2 and patch capacitor C5 with the anode of electrochemical capacitor C2 and the end of patch capacitor C5; The anode of electrochemical capacitor C2 links to each other with the pin 4 of one-level power conversion chip IC1, and the pin 4 of one-level power conversion chip IC1 links to each other with the pin 3 of secondary conversion chip IC2, is the 5V power supply of system; The pin 2 of secondary power supply conversion chip IC2 is the 3.3V power supply of system, link to each other with Chip-R R1 one end with the anode of electrochemical capacitor C3, the other end of Chip-R R1 links to each other with the anode of light emitting diode LED1, the negative electrode of LED 1 and electrochemical capacitor C3 plus earth;
JTAG program download interface comprises the connector JTAG1 of a 2*5, resistance R 2, and R3, R4, R5, R6, R7 forms; Pin 1 and the pin 2 of connector JTAG1 connect the 3.3V power supply, and the pin 3 of connector JTAG1 connects the pin 7 of main control chip IC6 and an end of resistance R 4, resistance R 4 another termination 3.3V power supplys; The pin 4 of connector JTAG1 connects the pin 40 of main control chip IC6 and an end of resistance R 5, resistance R 5 another termination 3.3V power supplys; The pin 5 of connector JTAG1 connects the pin 38 of main control chip IC6 and an end of resistance R 3, resistance R 3 another termination 3.3V power supplys; The pin 6 of connector JTAG1 connects the pin 39 of main control chip IC6 and an end of resistance R 6, resistance R 6 another termination 3.3V power supplys; The pin 7 of connector JTAG1 connects the pin 34 of main control chip IC6 and an end of resistance R 2, resistance R 2 another termination 3.3V power supplys; The pin 9 of connector JTAG1 connects the pin 37 of main control chip IC6 and an end of resistance R 7, resistance R 7 other end ground connection; The pin 8 of connector JTAG1 is unsettled, pin 10 ground connection of connector JTAG1;
The AccessPort circuit is made up of level transferring chip IC3, patch capacitor C6, C7, C8, C9, C10; The 15 pin ground connection of level transferring chip IC3; The pin 16 of level transferring chip IC3 links to each other with the 3.3V power supply with the end of patch capacitor C6, the other end ground connection of patch capacitor C6; The pin 1 of level transferring chip IC3 links to each other with the end of patch capacitor C9, the pin 3 of another termination level transferring chip IC3 of patch capacitor C9; The pin 4 of level transferring chip IC3 links to each other with the end of patch capacitor C10, the pin 5 of another termination level transferring chip IC3 of patch capacitor C10; The pin 2 of level transferring chip IC3 links to each other with the end of patch capacitor C7, the other end ground connection of patch capacitor C7; The pin 6 of level transferring chip IC3 links to each other with the end of patch capacitor C8, the other end ground connection of patch capacitor C8; The pin 9 of level transferring chip IC3 links to each other with the pin 22 of main control chip IC6, and the pin 10 of level transferring chip IC3 links to each other with the pin 21 of main control chip IC6; The pin 7,8 of level transferring chip IC3 connects the pin 2,1 of the connector P1 in governor circuit and the peripheral interface circuit respectively; Other pins of level transferring chip IC3 are unsettled;
Iridium satellite module satellite communication circuit is by iridium satellite communication chip IC4, resistance R 8, R9, light emitting diode D4, and antenna J1 and patch capacitor C11, C12, C13, C14, C15 form; 22 pins of iridium satellite communication chip IC4 link to each other with 1 pin of antenna J1,2 ~ 5 pin ground connection of antenna J1; The pin 20 of iridium satellite communication chip IC4 links to each other with an end of resistance R 8, and the other end of resistance R 8 links to each other with the anode of light emitting diode D4, light emitting diode D4 plus earth; The pin 19 of iridium satellite communication chip IC4 links to each other with an end of resistance R 9, and 16 pins that another termination IC4_19 of resistance R 9, IC4_19 meet main control chip IC6 link to each other; The pin 3,4,8,15 of iridium satellite communication chip IC4,18 ground connection, the pin 13 of iridium satellite communication chip IC4 links to each other with 32 pins of main control chip IC6, and the pin 11 of iridium satellite communication chip IC4 links to each other with 33 pins of main control chip IC6; The pin 5 of iridium satellite communication chip IC4 links to each other with the pin 17 of main control chip IC6; The pin 6 of iridium satellite communication chip IC4 links to each other with the pin 31 of main control chip IC6; The pin 7 of iridium satellite communication chip IC4 links to each other with pin 30 pins of main control chip IC6; The pin 1,2 of iridium satellite communication chip IC4 connects the end of 5V power supply and patch capacitor C11, C12, C13, C14, C15, the other end ground connection of patch capacitor C11, C12, C13, C14, C15; Other pins of iridium satellite communication chip IC4 are unsettled;
Authority's bimodulus satnav circuit is made up of big-dipper satellite positioning chip IC5, Big Dipper antenna J2, button cell BT1, paster field effect transistor Q1, diode D5, three resistance R 10, R11, R12 and three patch capacitor C16, C17, C18; The pin 7,13,14,15 of big-dipper satellite positioning chip IC5,17 ground connection; The pin 3 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 11, another termination IC5_3 of resistance R 11, and IC5_3 connects the pin 13 of main control chip IC6; The pin 4 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 12, another termination IC5_4 of resistance R 12, and IC5_4 connects the pin 12 of main control chip IC6; The pin 5,10,28 of big-dipper satellite positioning chip IC5 links to each other with the pin 25,26,46 of main control chip IC6 respectively; The pin 6 of big-dipper satellite positioning chip IC5 links to each other with GPS_3V3, and GPS_3V3 links to each other with the source electrode of paster field effect transistor Q1, and GPS_3V3 links to each other with the end of patch capacitor C16, C17, C18, the other end ground connection of patch capacitor C16, C17, C18; The drain electrode of field effect transistor Q1 connects the 3.3V power supply; The grid of paster field effect transistor Q1 links to each other with the pin 18 of main control chip IC6; The pin 16 of big-dipper satellite positioning chip IC5 links to each other with Big Dipper antenna J2; The pin 18 of big-dipper satellite positioning chip IC5 links to each other with an end of resistance R 10, and the other end of resistance R 10 links to each other with the pin 19 of big-dipper satellite positioning chip IC5; The pin 11 of big-dipper satellite positioning chip IC5 links to each other with the negative electrode of diode D5, and the anode of diode D5 links to each other with the positive pole of button cell BT1, the minus earth of button cell BT1; Other pins of big-dipper satellite positioning chip IC5 are unsettled;
Governor circuit and peripheral interface circuit comprise main control chip IC6, crystal oscillator Y1,1, one light emitting diode D6 of switch S, three utmost point pipe Q2, Q3, Q4, connector P1, the P2 of two 7 interfaces, eight Chip-R R13, R14, R15, R16, R17, R18, R19, R20, seven resistance R 21, R22, R23, R24, R25, R26, R27,12 patch capacitor C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30 form; The pin 1,9,24,36,48 of main control chip IC6 connects the 3.3V power supply; The direct ground connection of 23,35,44,47 pins of main control chip IC4; The pin 5 of main control chip IC6 links to each other the other end ground connection of patch capacitor C19 with the end of the end of crystal oscillator Y1 and patch capacitor C19; The pin 6 of main control chip IC6 links to each other the other end ground connection of patch capacitor C20 with the end of the other end of crystal oscillator Y1 and patch capacitor C20; The pin 7 of main control chip IC6 links to each other with the end of Chip-R R13, another termination 3.3V power supply of Chip-R R13; The pin 7 of main control chip IC6 links to each other the other end ground connection of the other end of switch S 1 and patch capacitor C21 with the end of an end of switch S 1 and patch capacitor C21; The pin 8 of main control chip IC6 connects with patch capacitor C30 one end and links to each other, patch capacitor C30 other end ground connection; The pin 10 of main control chip IC6 links to each other with the end of resistance R 21 and R22, the other end ground connection of resistance R 22, and the other end of resistance R 21 links to each other with the pin 6 of connector P2; The pin 11 of main control chip IC6 links to each other with the end of resistance R 23 and R24, the other end ground connection of resistance R 24, and the other end of resistance R 23 links to each other with the pin 4 of connector P2; The pin 12,13 of main control chip IC6 meets IC5_4, IC5_3 respectively; The pin 16 of main control chip IC6 meets IC4_19; The pin 17 of main control chip IC6 links to each other with the pin 5 of iridium satellite communication chip IC4; The pin 18 of main control chip IC6 links to each other with the grid of paster field effect transistor Q1; The pin 19 of main control chip IC6 links to each other with the end of resistance R 26, R27, the other end ground connection of R26, and the other end of R27 links to each other with the pin 7 of connector P1; The pin 20 of main control chip IC6 links to each other with an end of resistance R 25, the other end ground connection of R25; The pin 21,22 of main control chip IC6 links to each other with the pin 10,9 of level transferring chip IC3 respectively; The pin 25,26 of main control chip IC6 links to each other with the pin 5,10 of big-dipper satellite positioning chip IC5 respectively; The pin 30,31,32,33 of main control chip IC6 links to each other with the pin 7,6,13,11 of iridium satellite communication chip IC4 respectively; The pin 34,37,38 of main control chip IC6,39 links to each other with the pin 7,9,5,6 of connector JTAG1; The pin 41 of main control chip IC6 links to each other with Chip-R R15 one end, the Chip-R R15 other end links to each other with the base stage of triode Q2, the emitter of triode Q2 links to each other with the end of Chip-R R18, and the other end of Chip-R R18 links to each other with the pin 1 of connector P2; The pin 42 of main control chip IC6 links to each other with Chip-R R16 one end, the Chip-R R16 other end links to each other with the base stage of triode Q3, the emitter of triode Q3 links to each other with the end of Chip-R R19, and the other end of Chip-R R19 links to each other with the pin 2 of connector P2; The pin 43 of main control chip IC6 links to each other with Chip-R R17 one end, the Chip-R R17 other end links to each other with the base stage of triode Q4, the emitter of triode Q4 links to each other with the end of Chip-R R20, and the other end of Chip-R R20 links to each other with the pin 3 of connector P2; The grounded collector of triode Q2, Q3, Q4; The pin 45 of main control chip IC6 links to each other with the end of Chip-R R14, and the other end of resistance R 14 links to each other with the anode of light emitting diode D6, the plus earth of light emitting diode D6; 3.3V power supply links to each other with the end of patch capacitor C22 ~ C29, the other end ground connection of patch capacitor C22 ~ C29; Other pins of main control chip IC6 are unsettled;
One-level power conversion chip IC1 adopts the LM2576-5 chip of TI Texas Instruments, secondary power supply chip IC 2 adopts the AMS1117 chip of AMS company, level transferring chip IC3 adopts the sp3232 chip of Sipex company, the SBD9602 chip that iridium satellite communication chip IC4 adopts Iridium LLC to produce, satnav chip IC 5 adopts the GPS of authority company independent research and the TD3020C chip of Big Dipper bimodulus, the STM32F101C8T6 that main control chip IC6 adopts ST Microelectronics to produce.
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