CN205176279U

CN205176279U - Be used for cable operation and maintenance management to patrol and examine wireless positioning device

Info

Publication number: CN205176279U
Application number: CN201520880814.9U
Authority: CN
Inventors: 王振浩; 戴斌; 李国庆; 庞丹; 张喜林; 赵昌鹏; 邵伟艳; 罗文清
Original assignee: State Grid Corp of China SGCC; Northeast Dianli University; State Grid Jilin Electric Power Corp
Current assignee: State Grid Corp of China SGCC; State Grid Jilin Electric Power Corp; Northeast Electric Power University
Priority date: 2015-11-08
Filing date: 2015-11-08
Publication date: 2016-04-20
Anticipated expiration: 2025-11-08

Abstract

The utility model provides a be used for cable operation and maintenance management to patrol and examine wireless positioning device, belongs to the electric power system service equipment field. The utility model aims at providing an in the cable run operation and maintenance management engineering, command center can in time know the be used for cable operation and maintenance management to patrol and examine wireless positioning device of the work orbit of cable tour work. The utility model discloses a constitute by microprocessor, big dipper satellite receiving module, GPRS wireless data transmission circuit, human -computer interaction and serial ports level shifting circuit, MAX3232 level shifting circuit. The utility model discloses simple structure, operation convenient to use. The utility model discloses big dipper receiving module acquires real time information (longitude and latitude, height above sea level etc. ) and delivers to the CPU processing through asynchronous serial communication (UART), and the GPRS module is delivered to to the data after CPU handles to wireless mode conveying to distant place server. For making things convenient for the test of terminal later stage and maintaining, added serial ports level conversion level, the level after the conversion is suitable for and upper computer connection. Man -machine interface shows the information that beidou module acquireed on the spot in addition, can set up data transfer time interval etc. The different on -the -spot application of being convenient for through input device.

Description

Radio positioner is patrolled and examined for cable operation management

Technical field

The utility model belongs to electric system service equipment field.

Background technology

In traditional cable circuit operation management engineering, after command centre sends staff to working site to some other department, the communication of command centre and staff is based on phone, can not the geography information of Real-time Obtaining staff, duty,, there is the shortcomings such as information delay, inefficiency and degree of optimization are low in later stage O&M information many employings manual type input system.Radio positioner is patrolled and examined for staff is equipped with, command centre can the geography information of Real-time Obtaining staff, comprise longitude and latitude, sea level elevation, time, and O&M situation can be reached command centre by locating device in time, meet the demand of command centre-staff's real-time Communication for Power.Contribute to the ruuning situation that command centre grasps cable line and equipment, realize the functions such as the operational inspection of cable line, personnel positioning, the emergency processing of potential faults, patrol officer's optimizing scheduling and the emergency command of a cable line distant place.

Summary of the invention

The purpose of this utility model is to provide a kind of in cable line operation management engineering, and what command centre can understand the working trajectory of cable tour work in time patrols and examines radio positioner for cable operation management.

The utility model is made up of microprocessor, big-dipper satellite receiver module, GPRS wireless data sending circuit, man-machine interaction and serial port level chance-over circuit, MAX3232 level shifting circuit;

Microprocessor: U1 is single chip computer AT MEGA16L, J1 is JTAG debugging interface; The pin 5,17,38,27 and 29 of U1 connects 3.3V power supply, pin 6,18,39 and 28 all ground connection of U1; The pin 7 of U1 meets electric capacity C2 over the ground, and the pin 8 of U1 meets electric capacity C3 over the ground, the indirect crystal oscillator Y1 of the pin 7,8 of U1; The pin 4 of U1 and the indirect resistance R1 of 3.3V power supply, the pin 4 of U1 meets electric capacity C1 over the ground, and the pin 9,10 of U1 is connected with the pin 6,7 of U2 respectively; The pin 11 of U1 is connected with the pin 12 of the pin 9 of U3, U1 and the pin 10 of U3; The pin 13 of U1 is connected with the pin 4 of U4, and the pin 14 of U1 is connected with the pin 5 and 6 of U4, and the pin 15 of U1 is connected with the pin 3 of U4; The pin 4,7 of J1 connects 3.3V power supply, pin 2,10 ground connection of J1; The pin 1 of J1 is connected with the pin 21 of U1, the pin 3 of J1 is connected with the pin 23 of U1, the pin 5 of J1 is connected with the pin 22 of U1, the pin 9 of J1 is connected with the pin 24 of U1, the pin 6 of J1 is connected with the pin 4 of U1, and 1,3,4,9 of J1 connects respectively by resistance R2, R3, R4, R5 and 3.3V power supply;

Big-dipper satellite receiver module: U2 is big-dipper satellite receiver module UM222-III; The pin 23 of U2 connects 3.3V power supply, and pin 23 is two electric capacity C4, C5 over the ground, the direct ground connection of pin 24,12,10 and 12, and pin 3 resistance in series R9 is connected to power supply 3.3V through light emitting diode; The pin 7 of U2 is connected with the pin 10 of U1; The pin 6 of U2 is connected with the pin 9 of U1; The pin 20 of U2 is connected with the pin 11 of U5; The pin 21 of U2 is connected with the pin 12 of U5; U2 pin 9 is connected by inductance L 1 with pin 11; U2 pin 9 is connected to ground through two shunt capacitances C14, C6; The pin 11 of U2 is connected with the pin 1 of antennal interface SMA, and the pin 2 of SMA is connected to ground;

GPRS wireless data sending circuit: U3 is GPRS wireless data transmission module SIM900A; The pin 55,56,57 of U3 connects 3.3V power supply; Pin all ground connection of all GND by name of U3; Electric capacity C7 electric capacity C8, be connected between 3.3V VDD-to-VSS; The pin 9 of U3 is connected with the pin 11 of U1; The pin 10 of U3 is connected with the pin 12 of U1; The pin 31 of U3 is connected to ground through electric capacity C9; J2 is the Kato of SIM card, and the pin 31 of U3 is connected with the pin 7 of J1; The pin 30 of U3 is connected with the pin 1 of J1; The pin 33 of U3 is connected with the pin 2 of J1; The pin 32 of U3 is connected with the pin 3 of J1; Pin 5 ground connection of J1;

Man-machine interaction and serial port level chance-over circuit: U4 is that man-machine interaction DMT32240S035_01WT serial ports shields; The pin 1,2 of U4 is connected with 3.3V power supply; Pin 7,8 ground connection of U4; The pin 4 of U4 is connected with the pin 13 of U1; The pin 5,6 of U4 is connected with the pin 14 of U1; The pin 3 of U4 is connected with the pin 15 of U1;

MAX3232 level shifting circuit: U5 is that the pin 16 of level switch module MAX3232EUE+, U5 is connected with 3.3V power supply; 3.3V power supply is connected with the earth through electric capacity C13; The pin 16 of U5 is connected through electric capacity C9 with pin 2; The pin 1 of U5 is connected through electric capacity C11 with pin 3; The pin 4 of U5 is connected through electric capacity C12 with pin 5; The pin 6 of U5 is connected through electric capacity C10 with pin 15; Pin 15 ground connection of U5; The pin 11 of U5 is connected with the pin 20 of U2; The pin 12 of U5 is connected with the pin 21 of U2; The pin 14 of U5 is connected with computer through resistance R11; The pin 13 of U5 is connected with computer through resistance R12.

The utility model structure is simple, easy for operation.The utility model Big Dipper receiver module obtains real-time information (longitude and latitude, height above sea level etc.) and delivers to CPU process by asynchronous serial communication (UART), and the data after CPU process deliver to GPRS module, are wirelessly sent to distant server.For convenience of the test of terminal later stage and maintenance, add serial port level conversion level, the level after conversion is suitable for being connected with host computer.In addition human-computer interaction interface shows the information that Big Dipper module obtains on the spot, can setting data delivery time interval etc. by input equipment, is convenient to the application of Different field.

Accompanying drawing explanation

Fig. 1 is the utility model Big Dipper terminal populations structural drawing;

Fig. 2 is the utility model microprocessor and reset circuit figure;

Fig. 3 is the utility model big-dipper satellite receiver module circuit diagram;

Fig. 4 is the utility model GPRS wireless data transmission module circuit diagram;

Fig. 5 is the utility model DMT32240S035_01WT serial ports screen connecting circuit figure;

Fig. 6 is the utility model MAX3232 level shifting circuit.

Embodiment

Microprocessor: microcontroller adopts the AVR single chip ATMEGA16L of Atmel company, has high performance-price ratio.The operating voltage of ATMEGA16L is 2.7-5.5V, and under the condition of 1MHz, 3.3V, running current is about 200uA, and vacant working electric current is 0.35mA.As shown in Figure 2.U1 is single chip computer AT MEGA16L, J1 is JTAG debugging interface.The pin 5,17,38,27 and 29 of U1 connects 3.3V power supply, pin 6,18,39 and 28 all ground connection of U1; The pin 7 of U1 meets electric capacity C2 over the ground, and the pin 8 of U1 meets electric capacity C3 over the ground, the indirect crystal oscillator Y1 of the pin 7,8 of U1; The pin 4 of U1 and the indirect resistance R1 of 3.3V power supply, the pin 4 of U1 meets electric capacity C1 over the ground.The pin 9 of U1 is connected with the pin 10 of the pin 6 of U2, U1 and the pin 7 of U2; The pin 11 of U1 is connected with the pin 12 of the pin 9 of U3, U1 and the pin 10 of U3; The pin 13 of U1 is connected with the pin 4 of U4, and the pin 14 of U1 is connected with the pin 5 and 6 of U4, and the pin 15 of U1 is connected with the pin 3 of U4, and other pins of U1 are unsettled.The pin 4,7 of J1 connects 3.3V power supply, pin 2,10 ground connection of J1; The pin 1 of J1 is connected with the pin 21 of U1, the pin 3 of J1 is connected with the pin 23 of U1, the pin 5 of J1 is connected with the pin 22 of U1, the pin 9 of J1 is connected with the pin 24 of U1, the pin 6 of J1 is connected with the pin 4 of U1, the pin 8 of J1 is unsettled, and 1,3,4,9 of J1 connects respectively by resistance R2, R3, R4, R5 and 3.3V power supply.

Big-dipper satellite receiver module: the big-dipper satellite receiver module UM220-III based on asynchronous serial communication of the employing of big-dipper satellite receiver module and Xin Xingtong company.UM220-IIIN module supports BD2B1, GPSL1 two frequency bins simultaneously, support two serial communications, an information for microcomputer reads, one for firmware upgrade, its positioning precision 2.5m, rate accuracy 0.2m/s, data updating rate reaches 1Hz, power consumption is only 120mW, is particularly useful for low cost, low-power consumption field.As shown in Figure 3.U2 is big-dipper satellite receiver module UM222-III.The pin 23 of U2 connects 3.3V power supply, and pin 23 is two electric capacity C4, C5 over the ground.The direct ground connection of pin 24,12,10 and 12.Pin 3 resistance in series R9 is connected to power supply 3.3V through light emitting diode; The pin 7 of U2 is connected with the pin 10 of U1; The pin 6 of U2 is connected with the pin 9 of U1; The pin 20 of U2 is connected with the pin 11 of U5; The pin 21 of U2 is connected with the pin 12 of U5; U2 pin 9 is connected by inductance L 1 with pin 11; U2 pin 9 is connected to ground through two shunt capacitances C14, C6; The pin 11 of U2 is connected with the pin 1 of antennal interface SMA, and the pin 2 of SMA is connected to ground; Other pins of U2 are unsettled.

GPRS wireless data sending circuit: SIM900A is one 2 GSM/GPRS module frequently, and the frequency range of work is: EGSM900MHz and DCS1800MHz.Module work voltage is 3.4V – 4.5V, can automatic searching two frequency range EGSM900 and DCS1800, also can arrange frequency range by AT order.GPRS data downlink transfer is maximum reaches 85.6kbps, is the twice of upstream rate, embedded ICP/IP protocol, supports multicasting control channel and unstructured supplementary data traffic.Asynchronous serial communication interface is provided, supports standard A T instruction set.There is provided 3 kinds of mode of operations: normal mode of operation, power-down mode, minimum functional mode.Under minimum powering mode, the RF of module part or SIM card part do not work, or RF part and SIM card part do not work, but serial ports still can use, and now power consumption is very low.The emissive power of SIM900A module is 2W under EGSM900 frequency range, reduces to 1W in DCS1800 frequency range, and the consumption stream under SLEEP pattern is only 1.0mA.As shown in Figure 4.U3 is GPRS wireless data transmission module SIM900A.The pin 55,56,57 of U3 connects 3.3V power supply; Pin all ground connection of all GND by name of U3; Electric capacity C7 electric capacity C8, be connected between 3.3V VDD-to-VSS; The pin 9 of U3 is connected with the pin 11 of U1; The pin 10 of U3 is connected with the pin 12 of U1; The pin 31 of U3 is connected to ground through electric capacity C9; J2 is the Kato of SIM card, and the pin 31 of U3 is connected with the pin 7 of J1; The pin 30 of U3 is connected with the pin 1 of J1; The pin 33 of U3 is connected with the pin 2 of J1; The pin 32 of U3 is connected with the pin 3 of J1; Pin 5 ground connection of J1, other pins are unsettled.

Man-machine interaction and serial port level chance-over circuit: man-machine interaction adopts the industrial serial ports of Di Wenke skill to shield DMT32240S035_01WT, DMT32240S035_01WT serial ports screen resolution 320 × 240 pixel, 16bit palette 5R6G5B, support 4 wire resistive touch screens, carry GB2312 mono-secondary character library, operating voltage 12V, still can normally work under subzero 30 degree, 85 degree above freezing.Only can realize display with a DIN pin, namely a DOUT pin can read touch information.Enlightening literary composition HMI has the communication frame buffer zone of 24 frames, and communication frame buffer zone is FIFO(push-up storage) structure, as long as communication buffer does not overflow, user can transmit data continuously to HMI.Can determine the state of fifo buffer by detecting BUSY pin state, as long as FIFO remains next frame buffer zone, BUSY pin becomes low level.Serial ports screen adopts frame format transceiving data, is accorded with being formed by frame head, instruction, data, School Affairs frame end.Amendment (reading) instruction and data can show information (receiving touch information).As shown in Figure 5.U4 is man-machine interaction DMT32240S035_01WT serial ports screen.The pin 1,2 of U4 is connected with 3.3V power supply; Pin 7,8 ground connection of U4; The pin 4 of U4 is connected with the pin 13 of U1; The pin 5,6 of U4 is connected with the pin 14 of U1; The pin 3 of U4 is connected with the pin 15 of U1.

MAX3232 level shifting circuit: conveniently UM220 debugging in early stage and later stage firmware upgrade, needs the serial ports 1 of UM220 to be connected to PC end through level transferring chip MAX3232EUE+.MAX3232 transceiver adopts proprietary low voltage difference transmitter output stage, utilizes dual charge pump can realize real RS-232 performance when 3.0V to 5.5V Power supply.Device only needs the outside small size charge pump capacitor of four 0.1 μ F.RS-232 output level can be maintained under 120kbps data rate.There is ± 15kVESD protection, electric current is low to moderate that 10nA, 3.0V to 5.5V power, speed is up to 1Mbps.As shown in Figure 6.U4 is level switch module MAX3232EUE+.The pin 16 of U5 is connected with 3.3V power supply; 3.3V power supply is connected with the earth through electric capacity C13; The pin 16 of U5 is connected through electric capacity C9 with pin 2; The pin 1 of U5 is connected through electric capacity C11 with pin 3; The pin 4 of U5 is connected through electric capacity C12 with pin 5; The pin 6 of U5 is connected through electric capacity C10 with pin 15; Pin 15 ground connection of U5; The pin 11 of U5 is connected with the pin 20 of U2; The pin 12 of U5 is connected with the pin 21 of U2; The pin 14 of U5 is connected with computer through resistance R11; The pin 13 of U5 is connected with computer through resistance R12.

In cable line operation management engineering, install a lot of 3G individual soldier and the vehicle-mounted audio and video acquisition devices of 3G, what complete cable line operation management patrols and examines work, for improving the quality to manual inspection, reach the commander of zero distance, guarantee that command centre is gone back in the transmission that audio frequency, video can both be smooth in real time.Command centre can understand the working trajectory of cable tour work in time, and commands the work place and working method patrolled and examined for an actual field situation distant place, needs the accurate location of 3G individual soldier and the vehicle-mounted audio and video acquisition devices of 3G being carried out to equipment and personnel.Vehicle-mounted and individual-soldier system sends the information such as the current longitude and latitude of vehicle, speed, time by GPRS timing to main station monitoring center.Grasp the ruuning situation of cable line and equipment, realize the functions such as the operational inspection of cable line, personnel positioning, the emergency processing of potential faults and the emergency command of a cable line distant place.

The course of work:

After UM220-IIIN module and big-dipper satellite synchronized links, the information such as the longitude received, latitude, sea level elevation, time are existed in internal storage, ATMEGA16L single-chip microcomputer is read and control UM220-IIIN module information by Unicore protocol realization, send different instructions and can obtain the information such as longitude, latitude, sea level elevation, time, information through with verification determine errorless after send into GPRS module.Man-machine interaction realizes information and shows on the spot, for operating personnel provide interface intuitively, obtains the information from control center in time, comprises the information such as instruction, requirement, deadline node.Adopt touch screen operation, operating personnel can uploading operation state, realizes the information interchange of a local distant place simultaneously.All data of man-machine interaction are transferred to ATMEGA16L single-chip microcomputer in a frame format by serial port protocol, and information is sent to GPRS module by ATMEGA16L single-chip microcomputer again.ATMEGA16L single-chip microcomputer realizes the control to GPRS module SIM900A by AT command set, sends " AT+CIPCSGP=1 ", arranges GPRS connected mode; " AT+CLPORT ", arranges tcp port number; Send " AT+CIPSTART ", set up TCP and connect.Return after successful connection " CONNECTOK "; Send " AT+CIPSEND ", after waiting for that module returns " > ", the data that will send are sent in GPRS module, and data will deliver to distant server.The pin 20,21 of UM220-IIIN is the pin of serial ports 1, and serial ports 1 has double-deck function: digital independent and firmware upgrade.For ensureing that the software version of big-dipper satellite receiver module can be operated in last state, needing its firmware of regular update, meeting the requirement of computer electrical communications by the level signal after electrical level conversion chip MAX3232EUE+, facilitate later stage system upgrade.

Claims

1. patrol and examine a radio positioner for cable operation management, it is characterized in that: be made up of microprocessor, big-dipper satellite receiver module, GPRS wireless data sending circuit, man-machine interaction and serial port level chance-over circuit, MAX3232 level shifting circuit;