CN206147308U - Remote monitoring terminal based on ARM and GPRS - Google Patents

Abstract

The utility model discloses a remote monitoring terminal based on ARM and GPRS, its characterized in that: include microcontroller and the GPRS module, touch -sensitive screen, memory cell and the signal conditioning module that are connected with the microcontroller electricity, the GPRS module is connected with the SIM module, signal conditioning module and data acquisition module are connected, GPRS module and the wireless connection of monitoring center. The utility model discloses monitor terminal's data acquisition part adopts the modularized design, can increase and decrease in a flexible way, and it is on -the -spot that monitoring center's host computer passes through GPRS network alright real -time supervision. This detection terminal structure is nimble, and the real -time is good, and application scope is wide, has extensive application prospect.

Description

A kind of remote monitoring terminal based on ARM and GPRS

Technical field

The utility model is related to remote control technology field, more particularly to a kind of long-range monitoring end based on ARM and GPRS End.

Background technology

With the development of modern production scientific and technological level, the requirement more and more higher to monitoring technology, form tends to variation. Field monitorings such as unattended transformer station, hydrometric station, weather station or in the industries such as communications and transportation, because distribution is compared point Scattered, bad environments, place is not fixed, is not easy to realize the frame of centralized Control and real-time monitoring and cable network with conventional method If being subject to a variety of restrictions.

Utility model content

In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide one kind and is based on The remote monitoring terminal of ARM and GPRS, to solve the deficiencies in the prior art.

For achieving the above object, the utility model provides a kind of remote monitoring terminal based on ARM and GPRS, its feature It is：Including microcontroller and the GPRS module, touch-screen, memory cell and the Signal-regulated kinase that electrically connect with microcontroller, The GPRS module is connected with sim module, and the Signal-regulated kinase is connected with data acquisition module, the GPRS module with prison Measured center wirelessly connects.

A kind of above-mentioned remote monitoring terminal based on ARM and GPRS, it is characterised in that：The microcontroller is S3C2440 processors.

A kind of above-mentioned remote monitoring terminal based on ARM and GPRS, it is characterised in that：The data acquisition module includes Analogue collection module, digital data acquisition module, switching value acquisition module.

A kind of above-mentioned remote monitoring terminal based on ARM and GPRS, it is characterised in that：The GPRS module selects Huawei GTM900C modules.

The beneficial effects of the utility model are：

The part of data acquisition of the utility model monitoring terminal adopts modularized design, can flexibly increase and decrease, monitoring center Host computer just can real-time monitoring scene by GPRS network.The detection terminal flexible structure, real-time is good, applied widely, tool Have wide practical use.

The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing It is bright, to be fully understood from the purpose of this utility model, feature and effect.

Description of the drawings

Fig. 1 is overall structure block diagram of the present utility model.

Fig. 2 is voltage signal change-over circuit figure of the present utility model.

Fig. 3 is data acquisition module SPI communication structure chart of the present utility model.

Specific embodiment

As shown in figure 1, a kind of remote monitoring terminal based on ARM and GPRS, it is characterised in that：Including the He of microcontroller 1 GPRS module 2, touch-screen 3, memory cell 4 and the Signal-regulated kinase 5 electrically connected with microcontroller 1, the GPRS module 2 with Sim module 8 connects, and the Signal-regulated kinase 5 is connected with data acquisition module 6, the GPRS module 2 and the nothing of monitoring center 7 Line connects.

Primary processor of the present utility model is the core of system, to complete data processing, and storage, transmission, man-machine interface shows The function such as show.Samsung S3C2440 processors with ARM9 as kernel are adopted with reference to the demand terminal handler of industry spot, it is The embedded microprocessor of a 16/32 RSIC structure based on ARM920T kernels, the MHz of dominant frequency 400 reaches as high as 533 MHz, the onboard SDRAM with 2 external 32 M, piece internal and external resources enrich, and autgmentability is strong.

Data acquisition module can be divided into analogue collection module, digital data acquisition module, switching value acquisition module, main complete The collection of bottom data in pairs.Each data acquisition module is communicated with primary processor by spi bus.Spi bus are A kind of high speed full duplex serial communication bus that motorola inc proposes, it allows CPU with various peripheral interface devices to go here and there Line mode is communicated.SPI interface only has MISO（It is main enter from going out）、MOSI（Master goes out from people）、SCLK（Clock）And CS（Piece is selected）4 Individual signal composition, only takes up 4 lines on chip, greatlys save resources of chip.Primary processor leads to the SPI of each acquisition module Letter mode for one master and multiple slaves mode, i.e., ARM primary processors as main equipment, each data acquisition module is main as from equipment Device drives serial clock initiates communication.Main equipment is indicated and which module acquisition module transmission data using chip selection signal CS. During communication, the MISO of main equipment is input, and MOSI is output, is output from the MISO of equipment, and MOSI is input, in main equipment Under the control of clock, main equipment carries out data exchange simultaneously with the bidirectional shift register from equipment, completes the transmission of a secondary data. Primary processor is as shown in Figure 3 with the communication structure figure of each module.

Due to the similitude in module design structure, analogue collection module part is mainly introduced here.Industry spot is adopted The signal major part of collection is analog quantity, such as pressure, temperature, liquid level, flow signal.These signals are after field instrument measurement General unification is output as 4-20 mA, the current and voltage signals of 0-5 V, 0-10 V scopes.By analogue collection module by these Analog quantity is converted to digital quantity.The voltage reference that the A/D standards of single-chip microcomputer are changed is set to 2.5 V, by 4-20 mA, 0-5 V, 0-10 The current and voltage signals unification of V scopes is the voltage signal within 0-2.5 V, could complete analog quantity to numeral into single-chip microcomputer The conversion of amount.For current signal, the voltage signal of 1-5 V is just converted in the precision of input one 250 Ω of termination, it is right It is scaled to by operational amplifier in the range of 0-2.5 V in voltage signal.Change-over circuit is as shown in Figure 2.

GPRS module selects Huawei's GTM900C modules, and it is a three frequency band GSMs/GPRS wireless modules.Module interface letter It is single, easy to use and powerful.It supports the AT orders of standard and strengthens AT orders.The GPRS data business of GTM900C Flank speed provides the ZIF interfaces of 40 pin up to 85.6 kbit/GTM900C, mainly there is power interface, UART interface（Maximum string Mouth speed is up to 115200bit/s）, standard SIM card interface and analog voice interface.The connection of GPRS module and primary processor is very Simply, because both are communicated by serial interface, so both are connected with Serial Port Line.The network work(of GPRS Can all it is integrated in the module, it is only necessary in primary processor, this one end is good by serial ports parameter setting, then sends corresponding AT and refers to Order is operated to module.

Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area Member just can make many modifications and variations without the need for creative work according to design of the present utility model.Therefore, all this technology necks Technical staff passes through on the basis of existing technology logic analysis, reasoning or limited reality according to design of the present utility model in domain Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.

Claims (4)

1. a kind of remote monitoring terminal based on ARM and GPRS, it is characterised in that：Including microcontroller（1）And with microcontroller （1）The GPRS module of electrical connection（2）, touch-screen（3）, memory cell（4）And Signal-regulated kinase（5）, the GPRS module（2） With sim module（8）Connection, the Signal-regulated kinase（5）With data acquisition module（6）Connection, the GPRS module（2）With prison Measured center（7）Wireless connection.

2. a kind of remote monitoring terminal based on ARM and GPRS as claimed in claim 1, it is characterised in that：The microcontroller Device（1）For S3C2440 processors.

3. a kind of remote monitoring terminal based on ARM and GPRS as claimed in claim 1, it is characterised in that：The data are adopted Collection module（6）Including analogue collection module, digital data acquisition module, switching value acquisition module.

4. a kind of remote monitoring terminal based on ARM and GPRS as claimed in claim 1, it is characterised in that：The GPRS moulds Block（2）From Huawei's GTM900C modules.