CN201698579U - Monitoring and data acquisition remote terminal - Google Patents

Abstract

The utility model discloses a monitoring and data acquisition remote terminal and belongs to the field of monitoring and data acquisition. The monitoring and data acquisition remote terminal comprises a data acquisition module, a microprocessor module, a crystal oscillator module, an SIM card module and a storage module which are supplied with power by a power supply module and a GPRS communication module, wherein an input end of the microprocessor module is respectively connected with output ends of the data acquisition module and the crystal oscillator module; an output end of the microprocessor module is respectively connected with the storage module and the GPRS communication module; and the SIM card module is connected with the GPRS communication module. The monitoring and data acquisition remote terminal has stable performance and high data acquisition accuracy, has complete data acquisition supplementation function, can avoid missing acquiring data due to blockage of a GPRS channel, can be used for basic data remote acquisition of water supply processing core technology and is also suitable for basic data remote acquisition of other industries.

Description

Monitoring and data acquisition remote terminal

Technical field

The utility model relates to monitoring and data collecting field, relate in particular to a kind of be applied to supply water handle monitoring and the data acquisition remote terminal of in the core technology basic data being monitored and being gathered.

Background technology

The basic data of the processing core technology that supplies water mainly comprises the data acquisition to flow, pressure, electric weight and water quality parameter, and wherein flow comprises source discharge, output water flow, zone metering flow, customer flow, alum flow quantity etc.; Pressure comprises each ductwork pressure of output water, each main, arm node pressure, each dry point pressure of user, booster station pressure etc.; Electric weight comprises water intaking pump house, the electric current that goes out water plant, booster station, back flush pump house, voltage, power factor, electric energy etc.; Water quality parameter comprises turbidity, chlorine residue of pipe network important node etc.

The basic data that the above reaches, in the core technology that supplies water and handle, as the Fare Collection System of marketing (check meter and charge), the water supply dispatching system, zone metering system (leak rate, production and marketing rate, comprehensive water price), all will use in the customer service system, it " ensures water supply security, improves water supply quality, optimizes water supply cost, improves water services " water undertaking plays crucial effects.

The supervisory control and data acqui sition system of the existing process field that is used to supply water is when work, because environment is comparatively abominable, data stability, the accuracy of gathering are not high, and in data transfer procedure, because of phenomenon appears failing to report in GPRS channel block easily, obliterated data, and cause above-mentioned marketing Fare Collection System, water supply dispatching system, zone metering system, customer service system job insecurity.

The utility model content

Inaccurate at existing supervisory control and data acqui sition system job insecurity, image data, the defective of phenomenon appears failing to report easily, the utility model combines microelectric technique, computer technology, wireless remote (GPRS) network communications technology, aim to provide a kind of monitoring and data acquisition remote terminal, its data acquisition error can satisfy the error requirements of water supply industry to the data acquisition precision, and have perfect data filling mining function, can avoid leaking and adopt data because of the GPRS channel block.

For achieving the above object, the technical solution adopted in the utility model is: a kind of monitoring and data acquisition remote terminal, comprise data acquisition module, microprocessor module, crystal oscillator module, SIM card module, memory module by the power module power supply, its design feature is also to comprise the GPRS communication module; Wherein the input end of microprocessor module links to each other with the output terminal of data acquisition module, crystal oscillator module respectively, and the output terminal of microprocessor module links to each other with memory module, GPRS communication module respectively; Described SIM card module links to each other with the GPRS communication module.

Further, the utility model also comprises reseting module, and this reseting module links to each other with microprocessor module.

Further, the utility model also comprises debugging interface, and this debugging interface links to each other with microprocessor module.

Further, the utility model also comprises indicating lamp module, and this indicating lamp module comprises power light and signal Processing pilot lamp; Described indicating lamp module links to each other with microprocessor module.

In the utility model, described power module provides interchange, direct current duplex feeding, wherein input voltage AC220V/DC9V or DC9V lithium battery, output voltage DC24.0V or 9.0V or 5.0V or 4.2V or 3.3V.

Each data acquisition module terminal described in the utility model provides the input of 6 road pulsed quantities, the output of 2 road pulsed quantities, the input of 6 tunnel analog quantitys, the output of 2 tunnel analog quantitys, 1 road RS-485 communication interface; This RS-485 communication interface adopts bus mode, and maximum can insert 127 base tables with RS-485 communication function.6 tunnel amplitude 3.3V wherein, the pulsed quantity input of pulsewidth 60-80ms is applicable to the counting of the base table one or two-way integrated flow with pulse output and the supervision of states such as valve, pump; 2 road pulsed quantities output (output of relay dry contact), its pulse width is adjustable, can be used for supply equipment such as valve, pump etc. open, stop control; The input of 6 road 4-20mA (or voltage 0-5V) analog quantity is applicable to the detection of multiple electric weight and water quality parameter; The analog quantity output that 2 tunnel amplitude 0-10V are adjustable is applicable to the control of valve opening and variable frequency pump; 1 road communication speed≤4800bps is connected to the RS-485 communication interface of 127 nodes at most, is applicable to that flow, pressure, water quality parameter with RS-485 communication interface base table detect.

The preferred American TI Company MSP430F169 processor of the utility model patent microprocessor, MSP430F169 is a 16-Bit RISC framework, the single chip microcontroller of the highest arithmetic speed 8MIPS is for present industry aims at the designed microcontroller of low-power consumption application demand.The MSP430F169 chip pin position has five kinds of power-saving working mode, from the LPM3 standby mode, it consumes 2.6 μ A@Vcc=3V and is returned to normal mode of operation, it consumes 500 μ A@Vcc=3V, and 1MIPS is less than the wakeup time of 6 μ s and allow two operate outside frequencies inputs, built-in many moneys of integration low-power consumption peripheral module.Adopt von-Neumann structural design shared drive address bus MAB (Memory address bus) and MDB (Memory data bus), its all core positions, as specific function buffer (SFRs), Flash memory, RAM or numerous analog digital peripheral modules etc., all reflection is to same addressing block.Therefore do not need just can directly in Flash, directly carry out and access with bit, byte and word via RAM.

The MSP430F169 processor, inner each functions of modules characteristic is as follows:

The first, but the Flash module (read 1.8V, write 2.7V) of 60KB+256Byte low-voltage action can be used as the access of director demon code and data.2KB random access memory (RAM) (consumes 0.5 μ A@Vcc=3V) under the LPM4 standby mode, the data that are stored in the RAM still can keep.

The second, quite the flexible frequency of operation of tool system, built-in one group of inner basic RC concussion frequency DCO (Digitally-controlled oscillator) is when external power source is supplied to chip operating voltage to be 3.6V, maximum can operate 8MHz, but can be along with chip operation temperature, voltage and drift to some extent.Allow the input of two separate outer frequency of operation in addition, series connected oscillator frequency scope is one group of LFXT1CLK (can external low-frequency oscillation source or high-frequency agitation source): 32.768KHz-8MHz and another group XT2CLK (only can external high frequency oscillation source): 450KHz-8MHz.

Three, timing module provides one group of WatchDog Timer, can system's replacement, one group of basic model timer, two groups of complete function 16 bit timing devices be had the count mode of increasing, continuous mode, increases or subtract count mode, stop mode by it when system delays machine.

Four, 12 8 foreign channels approximant continuously (SAR) analog digital conversion (Analog to Digital) module, maximum slewing rate can reach 200KHz, built-in reference voltage (1.5V, 2.5V), sample-and-hold circuit, scans function automatically.

Five, 2 group of 12 bit digital analog-converted (Digital to analog) voltage output module, two groups of D/A can be by program control synchronous output.

Six, one group of analog voltage comparator can directly offer output signal timing module and grasp.

Seven, six groups of I/O port P1-P5, meter 48pin pin can be for input, output.

Eight, the digital transmission peripheral modules provides two groups of USART to can be used as asynchronous, synchronous transmission (supporting SPI3Pin, 4Pin transmission), I ²C interface.

Nine, hardware multiplier (Hardware Multiplier) is an outer periphery module, only needs in the use operand is put in the specific register, just can the result be fetched at next Machine cycle, and calculating process does not need the participation of processor.Can do that no symbol (+,-number) multiplies each other, has that symbol multiplies each other, no symbol phase multiply accumulating, four kinds of patterns of symbol phase multiply accumulating be arranged.

Ten, 3 inner DMA (Direct memory access) controller does not need the intervention of processor data can be moved between two memory addresss.

The described GPRS communication module of the utility model patent is preferably Siemens MC 52i, and the characteristics of MC52i GPRS communication module are: volume is little, in light weight; GPRS hyperchannel classification 10; Has low-power consumption; Support data, voice, short message and fax; The SIM application toolkit is arranged, AT Command Set control, R﹠amp; TTE authentication, GCF authentication, SMS:MT or MO or CB or PDU pattern; Its audio frequency comprises flank speed, upgrading flank speed and half rate, and band ICP/IP protocol stack is convenient to integrated.

MC52i GPRS communication module electrical specification is: support voltage range: 3.3 to 4.8V; Current drain: 3.0mA during sleep, 10.0mA when idle, 300mA-2.0A during conversation; 100 μ A during power down; MC52iGPRS communication module output power: 2W-classification 4, for EGSM 900,1W-classification 1, for GSM 1800.

MC52i GPRS communication module mechanical property: size: 35x32.5x3.1mm; Weight: 6g; Environment temperature :-20 ℃ to+55 ℃ (GSM 11.10 standards); Data characteristics: the CSD maximum reaches 14.4kbps, USSD, opaque pattern; Decoded mode: CS 1,2,3,4; GPRS: maximum 85.6kbps end-to-end protocol stack.

Described MC52i GPRS communication module interface is 50 pin attachment plugs; Power interface: SIM 1.8V and 3V interface, standard RS232 bidirectional interface, analog voice interface, 50 ohm antenna connectors.

The SIM card seat is used for fixing data memory module, and this data memory module is preferably the MCU in-chip FLASH, outer EEPROM (Electrically Erasable Programmable Read-OnlyMemory) the 24LC256 memory module of MCU sheet.

Compared with prior art, the beneficial effects of the utility model are:

1, the utility model analog quantity 0-5V or 4-20mA adopt same port input, and need not adopt 2 ports of prior art, also do not need to switch with toggle switch, and this switching is finished by the upper computer software configuration;

2, analog quantity is when 0-5V or the input of 4-20mA scope, adopted the instrumentation amplifier of accurate difference input, can effectively suppress common mode interference, make the data acquisition error can satisfy the error requirements of water supply industry, can be suitable for polytype analog sensor simultaneously the data acquisition precision;

3, the utlity model has the low-power consumption function, except that its components and parts are selected the low-power consumption chip for use, can run on 5 kinds of low power mode of operation; Be returned to normal mode of operation, wakeup time is less than 6 μ s;

4, the utility model adopts the GPRS common information platform, and reduced investment is for the remote auto radio meter register provides assurance;

When 5, the utlity model has power supply alarming function, terminal fault, available SMS notification management and maintenance staff;

6, the utlity model has perfect data filling mining function, initiatively report the filling mining data based on terminal, it is auxilliary that host computer issues the filling mining order, thereby, adopt the utility model device to overcome to leak and adopt data because of GPRS channel block (seven days).

Description of drawings

Fig. 1 is the utility model schematic block circuit diagram;

Fig. 2 is a flow chart of the present utility model, and wherein Fig. 2 (a) is a main program block diagram, and Fig. 2 (b) is for sampling and preserve data interruption service routine block diagram;

Fig. 3 is a power module electrical schematic diagram described in the utility model, and wherein Fig. 3 (a) is the DC9V/DC4.2V electrical schematic diagram, and Fig. 3 (b) is the DC9V/DC3.3V electrical schematic diagram, and Fig. 3 (c) is the DC9V/DC5.0V electrical schematic diagram, and Fig. 3 (d) is the DC9V/DC24.0V electrical schematic diagram;

Fig. 4 is a data acquisition module electrical schematic diagram described in the utility model, wherein Fig. 4 (a) is switch (pulse) amount load module electrical schematic diagram, Fig. 4 (b) is switch (pulse) amount output module electrical schematic diagram, Fig. 4 (c) is an analog quantity load module electrical schematic diagram, Fig. 4 (d) is the analog output module electrical schematic diagram, and Fig. 4 (e) inputs or outputs the module electrical schematic diagram for digital quantity;

Fig. 5 is microprocessor module described in the utility model, reseting module, debugging interface module, crystal oscillator module electrical schematic diagram;

Fig. 6 is a GPRS communication module electrical schematic diagram described in the utility model;

Fig. 7 is a SIM card module electrical schematic diagram described in the utility model;

Fig. 8 is a described in the utility model outer EEPROM memory module electricity principle.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further.

A kind of monitoring and data acquisition remote terminal as illustrated in fig. 1 and 2, comprise data acquisition module, microprocessor module, crystal oscillator module, terminal SIM card module, memory module and GPRS communication module by the power module power supply; Wherein the input end of microprocessor module links to each other with the output terminal of data acquisition module, crystal oscillator module respectively, and the output terminal of microprocessor module links to each other with memory module, GPRS communication module respectively.

The utility model also comprises reseting module, debugging interface and indicating lamp module, and this reseting module, debugging interface link to each other with microprocessor module respectively, and this indicating lamp module comprises power light and signal Processing pilot lamp.

Described power module electrical schematic diagram is seen Fig. 3, and the input voltage of power module has dual mode, and a kind of is to exchange AC220V/DC9V, power 18W; Another kind is a lithium battery power supply, single-unit ER34615M nominal capacity DC3.6V/13Ah, configuration three batteries series connection in the utility model, battery total capacity DC9V/13Ah (three diodes of string in the battery).

The output voltage of power module has 4 types:

Shown in Fig. 3 (a), GPRS chip operation power supply---9V/4.2V, U1-LM2596S-ADJ are the direct supply conversion chip of National Semiconductor in order to supply.

Shown in Fig. 3 (b), for supplying microprocessor chip, external storage EEPROM, RS232 or RS485 and pulsed base apparent source---9V/3.3V, U2-HT7333 is the power supply chip that closes safe company.

Shown in Fig. 3 (c), for being 5V instrument power supply---9V/5.0V for base table, U3-HT7350 is the power supply chip that closes safe company.

Shown in Fig. 3 (d), for being 24V instrument power supply---9V/24.0V for base table, U4-LM27313 is the power supply chip of National Semiconductor.

The electrical schematic diagram of described data acquisition module is seen Fig. 4, wherein shown in Fig. 4 (a), is switch (pulse) amount load module electrical schematic diagram, and wherein the input of switch (pulse) amount totally 6 the tunnel, and switch (pulse) amount input port is Pin0-Pin5 among the figure.D20 plays the overvoltage protection effect, and C33 plays the voltage regulation filtering effect, is gathered by the P1.0-P1.5 mouth of single-chip microcomputer, adopts interrupt mode record acquisition amount.

Shown in Fig. 4 (b), be switch (pulse) amount output module electrical schematic diagram, wherein switch (pulse) amount output totally 2 the tunnel, switch (pulse) amount output port be among the figure Po0 Po0GND/Po1 Po1GND, R47 is a metering function, DVCC Poutt R45 R46 form to drive amplifying circuit, J is a relay, P1.6 by single-chip microcomputer P1.7 Driving Field effectiveness pipe Q1, thereby being electrically connected and turn-offing between control Po0 (Po1) and the Po0GND (Po1GND) reaches the output action of pulsed quantity.

Shown in Fig. 4 (c), be analog quantity load module electrical schematic diagram, wherein analog quantity input totally 6 the tunnel, the analog quantity input port is among the figure: Ain0-Ain0-...Ain5-Ain5-, U5-INA122 is the accurate instrumentation amplifier of TI company, the difference input can effectively suppress common mode interference, and D8 plays the overvoltage protection effect; C12 strobes, and when being input as voltage signal, R10 and R13 work the dividing potential drop effect of gathering; When being input as current signal, R10 and R13 also play the effect of sampling resistor; R24 and R26 are adjustable resistance, regulate the U5 enlargement factor; R60 and C45 play the analog acquisition port that the voltage regulation filtering effect outputs to single-chip microcomputer, thereby finish the collection of analog quantity.

Shown in Fig. 4 (d), be the analog output module electrical schematic diagram, wherein analog quantity output totally 2 the tunnel, and the analog quantity output port is among the figure: Aout0-Aout1, U11 are the LM158 of National Semiconductor linear amplifier chip; R67 R70 R66 form output voltage feedback conditioned circuit, the analog output channel that is input as single-chip microcomputer of this amplifying circuit, thus finish the output of analog quantity.

Shown in Fig. 4 (e), for digital quantity input or output the module electrical schematic diagram, wherein the inputing or outputing maximum and can be connected to 127 instrument of digital quantity adopted bus mode; The port that inputs or outputs of digital quantity is among the figure: A, B; U14-SP3485 is the RS232/RS485 communication chip of Sipex company, and D14 and D17 are that communication state shows light emitting diode, and R36 and R51 are the current-limiting resistance of light emitting diode, and D18 and D19 are lightning protection overvoltage protection diode, and R52 is the terminal build-out resistor.

The input of this part is the serial ports unit that URXD1, UTXD1, UCLK0 connect single-chip microcomputer.Can effectively gather communication information by this partial circuit single-chip microcomputer with RS485 interface base table.

As shown in Figure 5, be described microprocessor module, reseting module, debugging interface module, and the electrical schematic diagram of crystal oscillator module, the U12 microprocessor adopts American TI Company low-power consumption chip---MSP430F169 processor.Wherein R23 C29 S2 R22 etc. form reset circuit; HEADER7X2 socket and processor 53,54,55,56,57 ports are formed the JTAG debugging interface; Crystal oscillator X1 X2, C18, C30 and processor 51,52 ports are formed oscillatory circuit.

A0-A5 is the analog acquisition port, and Ao0-Ao1 is the analog quantity output port, and Pin0-Pin5 is switch (pulse) amount input port, and Pout0-Pout1 is switch (pulse) amount output port.

GPRSRXD0 and GPRSTXD0 are single-chip microcomputer and GPRS PORT COM, and URXD1, UTXD1 and UCLK0 are single-chip microcomputer and RS485 chip PORT COM.

SCL and SDA are single-chip microcomputer and storer PORT COM, and GPRS RESET and GPRS IGT are respectively the emergency shutdown and " igniting " control signal port of GPRS communication module.

R23 C29 S2 R22 etc. form reset circuit; JTAG is a debugging interface; X1 X2 be crystal oscillator; U12 is a single-chip microcomputer.

As shown in Figure 6, be described GPRS communication module electrical schematic diagram, the communication module chip adopts the German SIEMENS MC52i of company.Wherein U15 is the GPRS communication module; It is the emergency shutdown control circuit of U15 that R56, T2 form amplifying circuit; The amplifying circuit that R55, T1 form is " igniting " signal control circuit of U15; The working power of U15 is 4.2 volts.

As shown in Figure 7, be described SIM card module electrical schematic diagram, wherein CCCLK CCRST CCVCC CCIN CCGND CCIO be GPRS communication module and SIM card communication signal.

As shown in Figure 8, be the outer EEPROM memory module electrical schematic diagram of described MCU sheet, its chip adopts 24LC256.Wherein U13 is the EEPROM storage chip, and SCL and SDA are the communication signal of single-chip microcomputer and storage chip.

The collection period of analog acquisition described in the utility model is 10s, starts the AD conversion by the every 10s of timer; And the interrupt mode collection is adopted in the pulsed quantity collection, and each pulse will produce an interruption, break in service recording impulse amount.Analog quantity output is control in real time with the need; Pulsed quantity output is control in real time with the need.

As Fig. 2 (a) is main program block diagram of the present utility model, the steps include:

1, at the beginning of the program start earlier to timer, the GPRS communication module, need with port carry out initialization;

2, after initialization is finished, start the GPRS communication module earlier.

3, power at every turn or reset, can send the order bag that powers on to server earlier after the GPRS communication module starts successfully, the order of waiting for server is the update system time.Have only system to receive server command, upgraded system time, system just can think to be connected first with server and achieves success.

4, after system and server were obtained successful connection first, system just entered normal operation mode; In normal operation mode, GPRS sent a secondary data in per 10 seconds, if find that the GPRS communication is unsuccessful, need restart GPRS and connect.

5, after the normal operation, system also will control the output of analog quantity and the output of pulsed quantity as required in real time.

Fig. 2 (b) is a timer interrupt service routine block diagram: the steps include:

1, the every interval of timer started regularly interrupt service routine in 1 second;

2, opened an AD conversion (analog data collection) in per 10 seconds.

3, real time data was set in per 10 seconds and uploads zone bit;

4, preserved a historical data in per 15 minutes to FLASH;

This utility model also can be used for other industry basic data acquisition.

Claims (7)

1. monitoring and data acquisition remote terminal comprise by data acquisition module, microprocessor module, crystal oscillator module, SIM card module, the memory module of power module power supply, it is characterized in that, also comprise the GPRS communication module; Wherein the input end of microprocessor module links to each other with the output terminal of data acquisition module, crystal oscillator module respectively, and the output terminal of microprocessor module links to each other with memory module, GPRS communication module respectively; Described SIM card module links to each other with the GPRS communication module.

2. monitoring according to claim 1 and data acquisition remote terminal is characterized in that, also comprise reseting module, and this reseting module links to each other with microprocessor module.

3. monitoring according to claim 1 and data acquisition remote terminal is characterized in that, also comprise debugging interface, and this debugging interface links to each other with microprocessor module.

4. monitoring according to claim 1 and data acquisition remote terminal is characterized in that, also comprise indicating lamp module, and this indicating lamp module comprises power light and signal Processing pilot lamp; Described indicating lamp module links to each other with microprocessor module.

5. monitoring according to claim 1 and data acquisition remote terminal, it is characterized in that, described power module provides interchange, direct current duplex feeding, is respectively input voltage AC220V or DC9V, output voltage DC24.0V or 9.0V or 5.0V or 4.2V or 3.3V.

6. monitoring according to claim 1 and data acquisition remote terminal is characterized in that, each data acquisition module terminal provides the input of 6 road pulsed quantities, the output of 2 road pulsed quantities, the input of 6 tunnel analog quantitys, the output of 2 tunnel analog quantitys, 1 road RS-485 communication interface; This RS-485 communication interface adopts bus mode to be connected to 127 base tables with RS-485 communication function.

7. monitoring according to claim 1 and data acquisition remote terminal is characterized in that, this monitoring and data acquisition remote terminal return to the wakeup time of normal mode of operation less than 6 μ s from low-power consumption mode.

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