CN2655344Y

CN2655344Y - Remote data acquiring assembly based on IRL and GPRS

Info

Publication number: CN2655344Y
Application number: CNU2003201093903U
Authority: CN
Inventors: 李津发
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-28
Filing date: 2003-10-28
Publication date: 2004-11-10
Anticipated expiration: 2013-10-28

Abstract

The utility model discloses a remote data collecting assembly based on IRL and GPRS, comprising an emulating quantity collection mode adjusted by the remote with the function of IRL, multi-functional MCU mode and a GPRS mode, wherein three modes are connected by a series port RS 232. The emulating quantity collection mode with the IRL function can be remote adjusted which comprises a front positioned amplifying and filter circuit, a signal adjustment chip with the isp function, an A/D shifting chip of the series port and a multiple routs emulating switch. The utility model can be remote adjusted, can be maintained, can be re-equipped and be re-programmed, with the upgrading ability, which is suitable for the condition monitor in fields of a bridge without person on duty, a tunnel condition monitor, weather, water, earthquake and the like, the portable movable objects monitoring of a train, a vehicle and a pallet and the like, the commercial device connection and monitor with no person on duty and the anti theft of big sized valuable goods of a vehicle and the like.

Description

Remote data acquisition assembly based on IRL and GPRS

Technical field

The utility model relates to a kind of data acquisition technology based on the Internet, relates in particular to a kind of remote data acquisition assembly based on IRL and GPRS.

Background technology

The built-in industrial control system based on WEB of Beijing big company of generation, product development focus on field control unit, this unit is the control computer (using the x86 processor) with network interface, it has data acquisition and conditioning interface and network interface.Make that control terminal is again a Web server, directly access to LAN.

The embedded Web signal sampler of Shenzhen Lanjin Information Technology Co., Ltd. is a typical networked remote measurement and control product that utilizes the design of built-in PC networking TT﹠C software integrating and developing platform, its hardware is the PC104+A/D card, software is ROM DOS+TCP/IP communication module+Modem communication module+RS232 communication module+Web server+signal acquisition module, and the user can carry out remote signal collection and control by network, telephone wire isotype.

The built-in PC and the DOS of experiments such as what mountain range pine of Central China University of Science and Technology's Mechanical Academy, Wang Junfeng develop networked remote monitoring device, built-in PC mainly comprises single board computer (SBC), PC104 computing machine and biscuit manufacture, its technical characterstic is that the main hardware of PC (CPU, RAM, disk, expansion slot, I/O mouth, network etc.) is integrated on the mainboard of a credit card-sized, designed the DOS TCP/IPStack of a Winsock style, a TCP/IP Socket only needs 4KB RAM just passable.But only support that TCP/IP is not enough.For realizing application based on Web, make the enough browsers of its energy, FTP, Internet softwares such as Email carry out operated from a distance and control to embedded system, we have designed the embedded Internet function library (100KB) of cross-platform (DOS/Windows/Linux) by the requirement of Embedded Application on the basis of basic TCP/IP function, with Web server, transceiver electronics, file loading, function package such as download are for resembling sin (), the standard module that cos () is such, directly call just passablely during programming in program, the programmer need not relate to complicated network knowledge.

Said system because configuration is higher, only needs the configuration corresponding software, the just remote testing of back-up system itself, remote maintenance easily, long-range reshuffling and remote upgrade.But cost an arm and a leg, volume is big, the higher application that has limited them of power consumption.

Based on the data acquisition system (DAS) of low side MCU (as 8032), in each field, have a wide range of applications.And along with the isp technology and with the continuous development of the interfacing of the Internet, will become fresh combatants based on the various application systems of the Internet, but up to this point, still there are not a product real effectively remote testing, the remote maintenance of back-up system itself, long-range reshuffling and remote upgrade.

Summary of the invention

The purpose of this utility model is: a kind of core component of the data acquisition system (DAS) based on low side MCU (as 8032) is provided, and it is remote testing, the remote maintenance of back-up system itself effectively, long-range reshuffling and remote upgrade.Developing is based on the application of the Internet.

The utility model is realized by following scheme: but have the analogue collection module IC1 of IRL function, multi-functional MCU module I C2 and the GPRS module constitutes by remote debugging, connect by serial ports SPI/I2C/RS232 between the three module; But remote debugging, analogue collection module IC1 with IRL function is by three preposition amplification and filtering circuits 1 that structure is identical, signal condition chip IC 3 with isp function, the A/D conversion chip IC4 of a serial line interface and the controlled connection pool 3 that constitutes by the controllable multipath analog switch, 4 links constitute, various simulating signals all are connected to signal condition chip IC 3 input ends through preposition amplification and filtering circuit 1 output behind controlled connection pool 3, signal condition chip IC 1 output terminal is delivered to the A/D conversion chip IC4 of serial line interface behind controlled connection pool 4, by the A/D conversion chip IC4 output digital signal of serial line interface; Multi-functional MCU module I C2 is based on the nucleus module of the remote data acquisition terminal of the Internet, and it is MCU that this module adopts the IC5 (μ PSD3000) based on Flash PSD framework, constitutes the core of this module.It is by constituting based on the IC5 (μ PSD3000) of Flash PSD framework, two RS232 interfaces, real-time clock X1242, electronic tag DS2422 and jtag interfaces.

The utility model with existing all compare by data acquisition module or assembly that low side MCU constitutes, the most basic difference is: but it is the assembly of the data acquisition of a real support IRL remote debugging, telotism.Have long-rangely debug, can safeguard, the electronic equipment of reconfigurable, reprogrammable and upgradability structurally must have following fundamental characteristics: have with the interface of the Internet, support IRL, support IAP (use able to programme) but, have stronger self-checking function, have redundant hardware resource, have recognizable mark encryption, safe and reliable.Because this assembly is structurally supported remote debugging, remote maintenance, is long-rangely reshuffled, long-range reprogrammed and remote upgrade, complete data acquisition function is arranged, has GPRS interface again with the Internet, therefore, be the core component that makes up based on the remote application terminal of the Internet, wide application prospect is arranged.The utility model is applicable to the antitheft of the access of monitoring, unattended business appliance (as self-service machine etc.) of mobile objects such as the unattended status monitoring, train, automobile, steamer, container in fields such as unattended bridge, tunnel state monitoring, weather, the hydrology, earthquake and large-scale valuables such as supervision, automobile.

Description of drawings

Fig. 1 constitutes block diagram for the utility model;

Fig. 2 is the multi-functional MCU module I of a utility model C2 structure principle chart;

But Fig. 3 has preposition amplification and filtering circuit and connection pool circuit diagram among the analogue collection module IC1 of IRL function for the utility model remote debugging;

But Fig. 4 has signal condition chip IC 3, A/D conversion chip and connection pool circuit diagram among the analogue collection module IC1 of IRL function for the utility model remote debugging;

Fig. 5 is the multi-functional MCU module I of a utility model C2 circuit diagram.

Embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

But the utility model has the analogue collection module IC1 of IRL function, multi-functional MCU module I C2 by remote debugging and the GPRS module constitutes, and connects by serial ports SPI/I2C/RS232 between the three module.Wherein, the GPRS module is the conventional products (as ETPro+GPRS Modem) that a kind of market provides, and its effect is that the wireless connections with the Internet are provided.But remote debugging has the analogue collection module IC1 of IRL function by three preposition amplification and filtering circuits 1 that structure is identical, signal condition chip IC 3 (ispPAC30) with isp function, the A/D conversion chip IC4 (MAX1236) of a serial line interface, with the controlled connection pool 3 that constitutes by 6 controllable multipath analog switch MAX4573,4 formations such as grade, various simulating signals all are connected to signal condition chip IC 3 input ends through preposition amplification and filtering circuit 1 output behind controlled connection pool 3, signal condition chip IC 3 output terminals are delivered to the A/D conversion chip IC4 of serial line interface behind controlled connection pool 4, by the A/D conversion chip IC4 output digital signal of serial line interface.Three identical preposition amplification and filtering circuits 1 of structure are made of ic chip 5 (AD620).It provides and being connected of multiple simulating signal (single-ended, difference, transformer, voltage source, current source etc.), and for whole module provides bigger adjustable gain scope, wherein, S7, R7, R8, C1 are used to realize the connection of varying input signal.New device ispPAC30 and preposition amplification and the common sqignal conditioning link that constitutes the high performance IRL of having function of filtering circuit with isp function, can carry out online reconfiguration and property regulation by the MCU module, make the analog data collection keep optimum performance.The A/D conversion chip IC4 (MAX1236) of 4 passage 12bit is used to finish analog to digital conversion, and the data after the conversion are passed through I ²The C serial line interface is sent, and carries out subsequent treatment.Self-test signal only needs the configuration in the remotely modifying module from controlled preposition amplification and filtering circuit input, can finish the self check to each basic link and passage.By the controlled connection pool that 6 controllable multipath analog switch MAX4573 constitute, under the domination of connection control signal, realize module work, self check and mode, reshuffle and the upgrade conversion of three kinds of states and reshuffling of system.Multi-functional MCU module I C2 is based on the nucleus module of the remote data acquisition terminal of the Internet, and it is MCU that this module adopts the IC6 (μ PSD3000) based on Flash PSD framework, constitutes the core of this module.It is by constituting based on the IC6 (μ PSD3000) of Flash PSD framework, two RS232 interfaces, real-time clock X1242, controlled connection pool 5,6, electronic tag DS2422 and jtag interfaces.Wherein, X1242 passes through I ²C links to each other with MCU, and DS2422 links to each other with the PC7 of MCU by a line serial ports.IC6 is by double-deck flash memory, SRAM, universaling I/O port and FPGA (Field Programmable Gate Array), USB/I ²8032 microcontrollers in C serial communication interface, ADC, DDC and PWM passage, the sheet, 2 UART, 3 16 bit timings/counters, 1 external interrupt is formed.The same with other PSD device, μ PSD3000 series also can be implemented in systems programming (ISP) by jtag interface.DS2422 provides a unique identify label with laser scoring, and the SRAM of the 1024bit that it provides is used as the buffer zone of authentication and password conversion.Its data link to each other by the PC7 of unibus with μ PSD3000.Real-time clock X1242 usually needs the time parameter that keeps for system provides a data collection and operation.Even if external connection battery makes system's power down still can continue accurate timing.Clock-reset when extraneous reset button is used for the module off-line.This circuit passes through I ²The I of C bus and μ PSD3000 ²The C mouth links to each other.Two-way RS232 conversion chip MAX3225E links to each other with μ PSD30002 UART mouth, and for module provides two independently RS232 interfaces, one of them is used for and the communicating by letter of GPRS module.Another can be used for and being connected of other module (as GPRS module, bluetooth module etc.).By band I ²Multiway analog switch MAX4575, the MAX4572 of C serial line interface constitute controlled connection pool, under the control of program, realize the switching of module operating conditions and self check attitude.Constituted self-test signal source that can be digital regulated by PWM and integrating circuit, needed simulation of self check and switching signal are provided.I/O mouth by μ PSD3000 is connected with the JTAG of self, makes module can realize isp based on microprocessor, thereby realizes, will reshuffle file by what monitoring center downloaded, and by microprocessor, the JTAG cause for gossip shows IRL.

Claims

1, a kind of remote data acquisition assembly based on IRL and GPRS, it is characterized in that: but constitute by remote debugging, analogue collection module (IC1), multi-functional MCU module (IC2) and GPRS module with IRL function, connect by serial ports SPI/I2C/RS232 between the three module; But remote debugging has the analogue collection module (IC1) of IRL function by three preposition amplification and filtering circuits (1) that structure is identical, signal condition chip (IC3) with isp function, the A/D conversion chip (IC4) of a serial line interface and the controlled connection pool (3 that constitutes by the controllable multipath analog switch, 4) constitute, various simulating signals all are connected to signal condition chip (IC3) input end to carry out online reconfiguration and property regulation through preposition amplification and filtering circuit (1) output behind controlled connection pool (3), signal condition chip (IC3) output terminal is delivered to the A/D conversion chip (IC4) of serial line interface behind controlled connection pool (4), by A/D conversion chip (IC4) the output digital signal of serial line interface; Multi-functional MCU module (IC2) is based on the nucleus module of the remote data acquisition terminal of the Internet, and it is MCU that this module adopts (IC6) (the μ PSD3000) based on Flash PSD framework, constitutes the core of this module; It is by constituting based on (IC6) (μ PSD3000) of Flash PSD framework, two RS232 interfaces, real-time clock X1242, electronic tag DS2422 and jtag interfaces.

2, the remote data acquisition assembly based on IRL and GPRS according to claim 1 is characterized in that: three identical preposition amplification and filtering circuits (1) of structure (AD620) are made of integrated package (IC5).

3, the remote data acquisition assembly based on IRL and GPRS according to claim 1 is characterized in that: dispose controlled connection pool (5,6) in the multi-functional MCU module (IC2).