CN2814846Y

CN2814846Y - Radio satellite positioning data image fast transmitting device

Info

Publication number: CN2814846Y
Application number: CN 200520061287
Authority: CN
Inventors: 陈阳宇; 陈军强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-13
Filing date: 2005-07-13
Publication date: 2006-09-06
Anticipated expiration: 2015-07-13

Abstract

The utility model discloses a fast transmitting device for radio satellite positioning data images, which comprises a digital camera, a GPS module and a GPRS module. The utility model is characterized in that the utility model also comprises a control circuit which integrates functions of the digital camera, the GPS module and the GPRS module and completes functions of image positioning and data transmission. The control circuit is respectively composed of a microcontroller, a power module, an LCD module, a USB chip, two serial channels, a microcomputer serial port channel and a keyboard input module which form a set of complete control circuit through electrical connection. The utility model has the characteristics of high integration degree, small volume, convenient carrying, simple operation, etc. and is suitable for field work environment.

Description

Radio satellite locator data image quick transmission devices

Technical field

The utility model relates to a kind of radio satellite locator data image quick transmission devices, belongs to the communications field.

Background technology

The system of present domestic realization wireless location data image communication function is based on PC or PDA's, existing gps system, and wireless data transmission module or card of surfing Internet, digital camera or camera, PC or PDA couple together by cable, realize monitoring function.Up to the present, domestic automation, microminiaturization, the integrated and portable product that this function also do not occur realizing.In addition, have the mobile phone of shooting and function of surfing the Net, because its picture quality is generally 300,000 pixels, use can not achieve the above object.Simultaneously, most of mobile phone does not have global positioning function.Mobile phone can not satisfy the practical application of open-air abominable work originally as commercial product.

Summary of the invention

The purpose of this utility model is the defective that exists at above-mentioned prior art, the information of GPS (global positioning system) locator data, digital camera photograph or mobile memory, under controlling automatically based on the usb server of micro controller system, be transferred to GIS (GIS-Geographic Information System) server by GPRS network, be used for fields such as water conservancy, traffic, public security, environmental protection, realize automation, the microminiaturization, integrated and portable of image scene data acquisition equipment.

The purpose of this utility model is achieved in that a kind of radio satellite locator data image quick transmission devices, it comprises digital camera, the GPS module, the GPRS module, it is characterized in that: it also comprises one with digital camera, the GPS module, the GPRS functions of modules is integrated, finish the control circuit of image and locator data transfer function, this control circuit is respectively by microcontroller, power module, LCD MODULE, the USB chip, serial-port, serial-port, microcomputer serial mouth passage, the keyboard input module is formed, and forms the complete control circuit of a cover by being electrically connected between them.

Above-mentioned radio satellite locator data image quick transmission devices, it is characterized in that: power module mainly is made up of switch chip MAX1771CSA, power switch pipe IRF7413, the control pin G of the output pin EXT of switch chip MAX1771 and switching tube IRF7413 joins, cell input terminal BATT charges to inductance L 200 by switching tube IRF7413, current-limiting resistance R202, R203, R206, the MAX1771 peripheral circuit plays regulates the output voltage effect, guarantees that output voltage is the required voltage value.

Above-mentioned radio satellite locator data image quick transmission devices, it is characterized in that: LCD MODULE is made up of LCD128128 and logic chip 74HC138,15 on the total Data Control line of LCD128128, be respectively: data wire D0～D7, reset line RST, chip select line CS0, address selection line A0, write line WR, read control line RD and power line, these lines are connected respectively with the bus of CPU by function; Logic chip 74HC138 is as address decoding, and decoding output CS0 is that low level is chosen

Liquid Crystal Module uses cpu bus to communicate by letter with CPU, and the CS1 output low level chooses the USB chip to use cpu bus.

Above-mentioned radio satellite locator data image quick transmission devices is characterized in that: the USB chip uses special usb host functional chip SL811HST.This chip use parallel communications of communicating by letter with CPU, each data wire, control line and cpu bus join, and the reset signal USB_RST of USB is connected general purpose I/O port of CPU, and the DATA+/DATA-line is the port that the USB chip is connected with camera.

Above-mentioned radio satellite locator data image quick transmission devices, it is characterized in that: serial-port adopts the GPS module, the GPS module is used 3.3 volts of power supplys, gps antenna uses 5 volts of power supplys, the serial communication port 0 of GPS module links to each other with the serial communication port 1 of CPU, be that GPS module RX0 pin connects CPU TX1 pin, GPS module TX0 pin connects CPU RX1 pin.

Above-mentioned radio satellite locator data image quick transmission devices, it is characterized in that: another serial-port adopts the GPRS module GR47 of Ericsson of embedded ICP/IP protocol, what GR47 used is outside SIM card seat, data wire SIM-DATA, clock line SIM-CLK, power line SIM-VCC, reset line SIM-RST are arranged, and more than lead-in wire is connected with GPRS module respective pins respectively; CPU and GPRS module communication are by line TX0, and RX0 realizes that these two lines connect the relevant pin of the serial port 0 of CPU.

Above-mentioned radio satellite locator data image quick transmission devices is characterized in that: microcomputer serial mouth passage uses the MAX3221 chip to carry out level conversion, make CPU can and dataphone, the various inquiries of reception server software, control and be provided with order.

Above-mentioned radio satellite locator data image quick transmission devices, it is characterized in that: the keyboard input module is provided with 7 buttons.

The utlity model has following advantage: integrated degree height, volume is little, and the use that is easy to carry adapts to the field work environment, simple operation and other advantages.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Description of drawings

Fig. 1 is a block diagram of the present utility model;

Fig. 2 is power circuit principle figure of the present utility model;

Fig. 3 is circuit theory Fig. 1 of the present utility model;

Fig. 4 is GPRS circuit theory diagrams of the present utility model;

Fig. 5 is a microcontroller circuit schematic diagram of the present utility model;

Fig. 6 is GPS circuit theory diagrams of the present utility model;

Fig. 7 is a keyboard circuit schematic diagram of the present utility model.

Embodiment

As Fig. 1～shown in Figure 7, a kind of radio satellite locator data image quick transmission devices, it comprises digital camera 1, GPS module 2, GPRS module 3, it is characterized in that: it also comprises one with digital camera 1, GPS module 2, GPRS module 3 functions

Integrated, finish the control circuit 4 of image and locator data transfer function, this control circuit is made up of microcontroller 5, power module 6, LCD MODULE 7, USB chip 8, serial-port 9, serial-port 10, microcomputer serial mouth passage 11, keyboard input module 12 respectively, forms the complete control circuit of a cover by being electrically connected between them; Power module 6 mainly is made up of switch chip MAX1771CSA, power switch pipe IRF7413, the control pin G of the output pin EXT of switch chip MAX1771 and switching tube IRF7413 joins, cell input terminal BATT charges to inductance L 200 by switching tube IRF7413, current-limiting resistance R202, R203, R206, the MAX1771 peripheral circuit plays regulates the output voltage effect, guarantees that output voltage is the required voltage value; LCD MODULE 7 is made up of LCD128128 and logic chip 74HC138,15 on the total Data Control line of LCD128128, be respectively: data wire D0 ~ D7, reset line RST, chip select line CS0, address selection line A0, write line WR, read control line RD and power line, these lines are connected respectively with the bus of CPU by function; Logic chip 74HC138 is as address decoding, and decoding output CS0 is that low level chooses Liquid Crystal Module to use cpu bus to communicate by letter with CPU; The CS1 output low level chooses the USB chip to use cpu bus; USB chip 8 uses special usb host functional chip SL811HST.This chip use parallel communications of communicating by letter with CPU, each data wire, control line and cpu bus join, and the reset signal USB_RST of USB is connected general purpose I/O port of CPU, and the DATA+/DATA-line is the port that the USB chip is connected with camera; Serial-port 9 adopts the GPS module, the GPS module is used 3.3 volts of power supplys, and gps antenna uses 5 volts of power supplys, and the serial communication port 0 of GPS module links to each other with the serial communication port 1 of CPU, be that GPS module RX0 pin connects CPU TX1 pin, GPS module TX0 pin connects CPU RX1 pin; Serial-port 10 adopts the GPRS module GR47 of Ericsson of embedded ICP/IP protocol, what GR47 used is outside SIM card seat, data wire SIM-DATA, clock line SIM-CLK, power line SIM-VCC, reset line SIM-RST are arranged, and more than lead-in wire is connected with GPRS module respective pins respectively; CPU and GPRS module communication are by line TX0, and RX0 realizes that these two lines connect the relevant pin of the serial port 0 of CPU; Microcomputer serial mouth passage 11 uses the MAX3221 chips to carry out level conversion, make CPU can and dataphone, the various inquiries of reception server software, control and be provided with order; Keyboard input module 12 is provided with 7 buttons.Its operation principle is such, presses the power key start, and system starts automatically and enters operating state, and liquid crystal display enters work master interface.Press digital camera and take key, needing to obtain picture.By the transmission key, system reads photograph automatically, and simultaneity factor is preserved this moment GPS (global positioning system) locating information.Picture and locating information according to the rules data format preserve, simultaneously with the udp protocol packet mode, launch by the GPRS module, through GPRS network and Internet network, be transferred to GIS (GIS-Geographic Information System) server.If the working region does not have the GPRS signal, can preserve picture and locating information earlier, to the GPRS signal area is arranged, transmission again.Now describe with regard to each several part circuit working principle, instrument uses the lithium battery power supply of single-unit 3.6 ampere-hours, because system is a portable product, and each module voltage current requirements difference, so adopt the boosted switch power supply to realize the power supply of system.System's required voltage kind is many, and current requirements is big, and camera requires 6V, 1.5A;

The GPRS module requires 3.6V, 500mA; Microprocessor and peripheral chip need 3.3V, 500mA, such electric current and voltage demand has great requirement to battery, instrument adopts the shunt mode to handle different voltage requirements, camera requires the voltage height, electric current is big, use a way switch power supply separately, the Switching Power Supply setting is output as 6V, and 2A satisfies the requirement of camera, and reserve certain allowance, guarantee the camera steady operation, GPRS and system are common to use one road power supply, because the voltage range of lithium battery is 3.3 volts～4.3 volts, the voltage of system requirements is in the centre of this scope, make and cannot use battery directly to power, this road power supply is designed to utilize Switching Power Supply to boost to 5V earlier, utilizes low-dropout regulator spare (LDO) to obtain 3.6 volts again

Use for system, GPRS module and GPS module with 3.3 volts, instrument uses the mode of high-capacity lithium battery, use branch feeding and the back voltage stabilizing of boosting earlier to solve the problem of the portable power supply of instrument.In the present embodiment, as shown in Figure 2, major part is switch chip MAX1771CSA in the circuit, power switch pipe IRF7413, the output pin EXT output PWM control impuls of switch chip MAX1771 is given the control pin G of switching tube IRF7413, make IRF7413 be in and open or closed condition, when IRF7413 opens, cell input terminal BATT is by switching tube IRF7413, current-limiting resistance R202, R203, R206 is to inductance L 200 chargings, when switching tube is closed, because the principle that inductive current can not suddenly change, make inductance pass through Schottky diode D204, D200 powers to the load, and reaches the purpose of boosting, the MAX1771 peripheral circuit plays regulates the output voltage effect, guarantees that output voltage is the required voltage value.Expand USB chip SL811HST outward by single-chip microcomputer, the server software of coupled system is realized the usb host function, press usb protocol, elder generation of system logarithmic code camera is enumerated, identification, set up the Preliminary Communications basis, analyze the file system of digital camera then, press the capacity of camera, following file system format: FAT12 is arranged, FAT16, FAT32, system resolution goes out the file system of digital camera, just the structure according to system finds the image data absolute sector addresses, system is according to this address and FAT table, read the corresponding data of the picture of user's selection, be put in the system cache, because the system cache capacity does not allow once to read the total data of picture, present embodiment is designed to gradation and reads, the mode that gradation sends, read the 24K data from camera at every turn, be packaged into a plurality of small data packets then by the ICP/IP protocol standard, send to GPRS network, server is received these packets, presses the Bale No. reorganization of packet, recovers this 24K data, and utilize the mistakes and omissions retransmission mechanism to guarantee the correctness of these 24K data, if the not enough 24K of data reads and sends by actual amount of data, read according to gradation like this, gradation sends, the mode that data recombination, mistakes and omissions are retransmitted has guaranteed the integrality and the correctness of image data.Present embodiment is to realize like this, use special usb host functional chip SL811HST, this chip use parallel communications of communicating by letter with CPU, each data wire, control line and cpu bus join, as shown in Figure 3, the USB chip is the same with liquid crystal interface, takies the address ram district of CPU, it is CS1 that signal is selected in decoding, when CS1 was low level, the USB chip took cpu bus, carried out exchanges data with CPU, the reset signal USB_RST of USB is connected general purpose I/O port of CPU, CPU will with usb communication before, the USB chip that should reset earlier, DATA+/DATA-line are the USB chips and the port that is connected of camera, this two data lines is added power line, use suitable USB mini

Joint connects camera and just can communicate by letter, and has obtained picture.The utility model adopts the GPRS module GR47 of Ericsson of embedded ICP/IP protocol stack, realize the GPRS network transfer function, GR47 uses as a data MODEM in system, microprocessor is connected by the RS232 serial-port with GR47, all interactive operations all are to carry out with serial communication mode, the data microprocessor is communicated by letter with GR47 by the AT order, state and the transfer of data of control GR47, GR47 has two states: coomand mode and data mode, in coomand mode, GR47 receives the AT order of microprocessor, fill order is returned execution result, in data mode, GR47 packs all data that receive microprocessor by ICP/IP protocol, send in the GPRS network, GR47 is the communication bridge of system and network, generally, GR47 is in coomand mode, microprocessor is to state informations such as GR47 request signal intensity, when sending data, microprocessor sends " connection network " AT order to GR47, and GR47 is connected to network automatically, successful connection, GR47 enters data mode, and microprocessor sends to GR47 to data, sends to network by GR47, GR47 is when data mode, the data that receive from network, intactly be transferred to microprocessor, like this, microprocessor has just obtained the feedback information of server, with server communication.The GPS module has automatic positioning function, as long as to the GPS module for power supply, sets parameter request, and the serial ports of GPS module will be with per second frequency output locating information and temporal information once.Microprocessor is connected with module by serial communication, locator data is controlled and received to module, system uses the GPS form of NMEA 0183, from gps data, obtain longitude and latitude, elevation, time, date, information such as satellite situation, as long as instrumentation person takes a secondary picture and transmits, system stores current latitude and longitude information, date and time information, temporal information and picture automatically accordingly, and picture has just had the recorded information of spot for photography (longitude and latitude) and shooting time (time on date) like this.The user uses server etc. that software is set on computers, can the parameter of instrument be provided with.Being connected by the RS232 serial communication of computer and instrument undertaken, instrumentation person's code name and name can be set, so that the collection of explanation data is originated in database of record, the IP address of server can be set, instrument can be connected correctly with server.Keyboard adopts membrane keyboard, and the operability of raising button and keyboard be installation property easily, and keyboard is provided with directionkeys, determines key, cancel key, transmission key, power supply.The utlity model has integrated degree height, volume is little, and the use that is easy to carry adapts to the field work environment, simple operation and other advantages.

Claims

1, a kind of radio satellite locator data image quick transmission devices, it comprises digital camera (1), GPS module (2), GPRS module (3), it is characterized in that: it also comprises one with digital camera (1), GPS module (2), GPRS module (3) function is integrated, finish the control circuit (4) of image and locator data transfer function, this control circuit is respectively by microcontroller (5), power module (6), LCD MODULE (7), USB chip (8), serial-port (9), serial-port (10), microcomputer serial mouth passage (11), keyboard input module (12) is formed, and forms the complete control circuit of a cover by being electrically connected between them.

2, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: power module (6) mainly is made up of switch chip MAX1771CSA, power switch pipe IRF7413, the control pin G of the output pin EXT of switch chip MAX1771 and switching tube IRF7413 joins, cell input terminal BATT charges to inductance L 200 by switching tube IRF7413, current-limiting resistance R202, R203, R206, the MAX1771 peripheral circuit plays regulates the output voltage effect, guarantees that output voltage is the required voltage value.

3, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: LCD MODULE (7) is made up of LCD128128 and logic chip 74HC138,15 on the total Data Control line of LCD128128, be respectively: data wire D0 ~ D7, reset line RST, chip select line CS0, address selection line A0, write line WR, read control line RD and power line, these lines are connected respectively with the bus of CPU by function; Logic chip 74HC138 is as address decoding, and decoding output CS0 is that low level chooses Liquid Crystal Module to use cpu bus to communicate by letter with CPU, and the CS1 output low level chooses the USB chip to use cpu bus.

4, radio satellite locator data image quick transmission devices according to claim 1 is characterized in that: USB chip (8) uses special usb host functional chip SL811HST.This chip use parallel communications of communicating by letter with CPU, each data wire, control line and cpu bus join, and the reset signal USB_RST of USB is connected general purpose I/O port of CPU, and the DATA+/DATA-line is the port that the USB chip is connected with camera.

5, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: serial-port (9) adopts the GPS module, the GPS module is used 3.3 volts of power supplys, gps antenna uses 5 volts of power supplys, the serial communication port 0 of GPS module links to each other with the serial communication port 1 of CPU, be that GPS module RX0 pin connects CPU TX1 pin, GPS module TX0 pin connects CPU RX1 pin.

6, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: serial-port (10) adopts the GPRS module GR47 of Ericsson of embedded ICP/IP protocol, what GR47 used is outside SIM card seat, data wire SIM-DATA, clock line SIM-CLK, power line SIM-VCC, reset line SIM-RST are arranged, and more than lead-in wire is connected with GPRS module respective pins respectively; CPU and GPRS module communication are by line TX0, and RX0 realizes that these two lines connect the relevant pin of the serial port 0 of CPU.

7, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: microcomputer serial mouth passage (11) uses the MAX3221 chip to carry out level conversion, make CPU can and dataphone, the various inquiries of reception server software, control and be provided with order.

8, radio satellite locator data image quick transmission devices according to claim 1, it is characterized in that: keyboard input module (12) is provided with 7 buttons.