CN105119621A - Integrated data transparent transmission device based on embedded script GPRS (General Packet Radio Service) module - Google Patents
Integrated data transparent transmission device based on embedded script GPRS (General Packet Radio Service) module Download PDFInfo
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Abstract
The invention relates to an integrated data transparent transmission device based on an embedded script GPRS (General Packet Radio Service) module. The integrated data transparent transmission device comprises a power module and a GPRS module, wherein the GPRS module comprises a baseband chip, a radio frequency chip, a FLASH memory chip and an RAM (Random-Access Memory); the baseband chip is respectively connected with the radio frequency chip, the FLASH memory chip and the RAM; the baseband chip comprises an operating system unit, a data transparent transmission control unit, a script set unit, a script interpreter unit, an application interface unit and a protocol stack unit; the data transparent transmission control unit, the script set unit, the script interpreter unit, the application interface unit and the protocol stack unit are orderly connected with each other and connected with the operating system unit respectively. The integrated data transparent transmission device based on the embedded script GPRS module provided by the invention achieves a function which can only be completed in need of an external MCU (Microprogrammed Control Unit) by using a stronger processing capacity of the baseband chip of the GPRS module and through the embedded data transparent transmission script, saves the external MCU and related circuits, saves the cost and reduces the area.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of integral type data penetration transmission device based on embedded script GPRS module.
Technical background
GPRS data transparent transmission unit (DTU) is widely used in the fields such as Industry Control, safety monitoring, medical monitoring, agriculture traffic due to easy to use, long transmission distance, wide coverage.GPRSDTU is a kind of wireless transparent data transfer equipment, and external equipment only needs the port provided by DTU, as serial ports, just data transparency can be transferred to far-end, and not need the operation considering DTU itself, namely DTU is partly considered as transparent channel.DTU is a kind of equipment of plug and play, and it shields AT operational order and the operating process of GPRS module complexity.User only needs to be connected on the port of DTU, can realize transfer of data.And the data transmission procedure of complexity, comprising IP tunnel sets up, and data transmit-receive is all encapsulated in DTU inside.
Traditional device based on GPRS data transparent transmission unit (DTU) as shown in Figure 1.DTU mainly comprises microprocessor unit (MCU) and GPRS module two parts.In order to realize transparent transmission, MCU has needed all operations carrying out transfer of data of GPRS module, and accepts the input of external data, after the data packet of outside input, is gone out by GPRS channel transfer.This comprises the foundation of GPRS wireless data channel, namely obtains IP address, access services device port, sets up Internet and connects.MCU is connected with GPRS module by serial ports 1.Another one serial ports 2 is used to be connected with external equipment.Traditional data penetration transmission cells D TU based on GPRS module needs to adopt multiple circuit unit to carry out practical function, and cost compare is high, and area occupied is also large, makes to be restricted in the application that some are higher to space requirement.
Summary of the invention
In order to solve the problems such as traditional data penetration transmission unit cost based on GPRS module is high, area occupied is large, the invention provides following technical scheme:
A kind of integral type data penetration transmission device based on embedded script GPRS module, comprise power module and GPRS module, described GPRS module comprises baseband chip, radio frequency chip, FLASH storage chip and RAM memory, and described baseband chip connects radio frequency chip, FLASH storage chip and RAM memory respectively;
Described baseband chip comprises operating system unit, data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit, radio frequency control unit, input-output unit, described data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit connect successively and are connected with operating system unit respectively, and described input-output unit connects peripheral hardware and data penetration transmission control unit; Described radio frequency control unit is connected with operating system, for controlling radio frequency chip;
Described data penetration transmission control unit is a shell script, for converting the initial data of input-output unit to TCP/IP packet;
Described set of scripts unit is a set of script of GPRS module definition, and user utilizes script to programme, and comprises logical operation, structure control, data type etc.;
The script interpretation that data penetration transmission control unit generates is the AT command set that application interface unit is general by described script interpreter unit;
Described application interface unit is AT command set, is the application interface of operation GPRS module;
Described protocol stacking unit comprises physical layer protocol stack, data link layer protocol stack, network layer protocol stack and transport layer protocol stack, and described each protocol stack connects successively;
Make use of the powerful computing capability of GPRS module self and memory space, by traditional MCU based on employing in GPRS data transparent transmission unit (DTU), RAM, FLASH integrated enter in the baseband chip of GPRS module inside, the logic control that script is realized by MCU and data processing, transfer to the data penetration transmission of baseband chip inside to control control unit to realize, and make use of RAM memory that GPRS module carries and FLASH storage chip and to store or data cached; Utilize baseband chip to carry input/output port simultaneously, connect external equipment.
Further, described power module is a power management chip, comprise voltage stabilizing and control unit, step-down controller control unit, charging control unit, step-down controller unit, battery equilibrium and voltage detection unit, boost converter unit, above-mentioned six unit are interconnected between two.Six unit are integrated into a power management chip, improve the operating efficiency of chip integration and power supply.
Further, described radio frequency chip comprises independently power-supply system, described power-supply system comprises the low pressure difference linear voltage regulator unit of external power source, buck converter unit, multiple parallel connection, described external power source connects buck converter, described buck converter connects the low pressure difference linear voltage regulator unit of multiple parallel connection, described each low pressure difference linear voltage regulator unit connects the modules of radio frequency chip respectively, interference each other when effectively can avoid radio frequency chip module work, power-supply system efficiency is high, noise inhibiting ability is strong.
Further, described data penetration transmission control unit comprises data resolution module, protocol resolution module, and described input-output unit, data resolution module, protocol resolution module connect successively.The initial data that input-output unit receives finally converts TCP/IP packet to by data resolution module, protocol resolution module successively, realizes the transparent transmission of data with this.
Further, described input-output unit can be one or more in UART interface, multimedia interface (MMI), USB (USB), SPI interface.
Beneficial effect of the present invention is:
(1), present invention utilizes the powerful disposal ability of the inner baseband chip of GPRS module, by built-in
Script function achieves traditional data penetration transmission cells D TU based on GPRS module needs outside MCU
The function that can complete, eliminates outside MCU and interlock circuit, provides cost savings, reduces area;
(2), present invention utilizes RAM memory and the FLASH storage chip of GPRS module inside, instead of the external memory unit of tradition based on the data penetration transmission cells D TU of GPRS module, save space.
(3), whole system complexity is low, and integrated level is high
(4), power management chip integrated level is high, efficiency is high, and wherein radio frequency chip adopts independently power-supply system, and noise inhibiting ability is strong.
Accompanying drawing explanation
Fig. 1, traditional structural representation based on GPRS data transparent transmission unit (DTU)
Fig. 2, structural representation of the present invention
Fig. 3, power management chip structural representation of the present invention
Fig. 4, operational flow diagram of the present invention
In figure: RF is radio frequency chip, BB is baseband chip, and RTOS is base band real time operating system
Embodiment
A kind of integral type data penetration transmission device based on embedded script GPRS module of the present invention as shown in Figure 2, comprise power module and GPRS module, described GPRS module comprises baseband chip, radio frequency chip, FLASH storage chip and RAM memory, and described baseband chip connects radio frequency chip, FLASH storage chip and RAM memory respectively; Described baseband chip selects 62 series of MTK platform, and described radio frequency chip can select MTK61 series, and described FLASH storage chip capacity can select 1G, RAM Capacity Selection 256M.
Described baseband chip comprises operating system unit, data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit, radio frequency control unit, input-output unit, described data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit connect successively and are connected with operating system unit respectively, and described input-output unit connects peripheral hardware and data penetration transmission control unit; Described radio frequency control unit is connected with operating system, for controlling radio frequency chip;
Described data penetration transmission control unit is a shell script, for converting the initial data of input-output unit to TCP/IP packet;
Described set of scripts unit is a set of script of GPRS module definition, and user utilizes script to programme, and comprises logical operation, structure control, data type etc.;
The script interpretation that data penetration transmission control unit generates is the AT command set that application interface unit is general by described script interpreter unit;
Described application interface unit is AT command set, is the application interface of operation GPRS module;
Described protocol stacking unit comprises physical layer protocol stack, data link layer protocol stack, network layer protocol stack and transport layer protocol stack, and described each protocol stack connects successively;
Make use of the powerful computing capability of GPRS module self and memory space, by traditional MCU based on employing in GPRS data transparent transmission unit (DTU), RAM, FLASH integrated enter in the baseband chip of GPRS module inside, the logic control that script is realized by MCU and data processing, transfer to the data penetration transmission of baseband chip inside to control control unit to realize, and make use of RAM memory that GPRS module carries and FLASH storage chip and to store or data cached; Utilize baseband chip to carry input/output port simultaneously, connect external equipment.
Further, as shown in Figure 3, described power module is a power management chip, comprise voltage stabilizing and control unit, step-down controller control unit, charging control unit, step-down controller unit, battery equilibrium and voltage detection unit, boost converter unit, above-mentioned six unit are interconnected between two.Six unit are integrated into a power management chip, improve the operating efficiency of chip integration and power supply.
Further, described radio frequency chip comprises independently power-supply system, described power-supply system comprises the low pressure difference linear voltage regulator unit of external power source, buck converter unit, multiple parallel connection, described external power source connects buck converter, described buck converter connects the low pressure difference linear voltage regulator unit of multiple parallel connection, described each low pressure difference linear voltage regulator unit connects the modules of radio frequency chip respectively, interference each other when effectively can avoid radio frequency chip module work, power-supply system efficiency is high, noise inhibiting ability is strong.
Further, described data penetration transmission control unit comprises data resolution module, protocol resolution module, and described input-output unit, data resolution module, protocol resolution module connect successively.The initial data that input-output unit receives finally converts TCP/IP packet to by data resolution module, protocol resolution module successively, realizes the transparent transmission of data with this.
Further, described input-output unit can be one or more in UART interface, multimedia interface (MMI), USB (USB), SPI interface.
As shown in Figure 4, operational process of the present invention is for starting GPRS module, perform GPRS module protocol stack, now user selects the need of execution data penetration transmission function by screen or other peripheral hardwares, if do not need to carry out data penetration transmission, then return GPRS module protocol stack, perform the wireless communication function that GPRS module is own, if carry out data penetration transmission, the then shell script of log-on data transparent transmission control unit, shell script is interpreted as general AT command set by script interpreter, set up IP tunnel, by data packet/unpack rear sending/receiving, final data I/O is to Internet.
Make use of the powerful computing capability of GPRS module self and memory space, by traditional MCU based on employing in GPRS data transparent transmission unit (DTU), RAM, FLASH integrated enter in the baseband chip of GPRS module inside, the logic control that script is realized by MCU and data processing, transfer to the data penetration transmission of baseband chip inside to control control unit to realize, and make use of RAM memory that GPRS module carries and FLASH storage chip and to store or data cached; Utilize baseband chip to carry input/output port simultaneously, connect external equipment.
With above-mentioned foundation desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. the integral type data penetration transmission device based on embedded script GPRS module, it is characterized in that: comprise power module and GPRS module, described GPRS module comprises baseband chip, radio frequency chip, FLASH storage chip and RAM memory, and described baseband chip connects radio frequency chip, FLASH storage chip and RAM memory respectively;
Described baseband chip comprises operating system unit, data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit, radio frequency control unit, input-output unit, described data penetration transmission control unit, set of scripts unit, script interpreter unit, application interface unit, protocol stacking unit connect successively and are connected with operating system unit respectively, and described input-output unit connects peripheral hardware and data penetration transmission control unit; Described radio frequency control unit is connected with operating system, for controlling radio frequency chip;
Described data penetration transmission control unit is a shell script, for converting the initial data of input-output unit to TCP/IP packet;
Described set of scripts unit is a set of script of GPRS module definition, and user utilizes script to programme, and comprises logical operation, structure control, data type etc.;
The script interpretation that data penetration transmission control unit generates is the AT command set that application interface unit is general by described script interpreter unit;
Described application interface unit is AT command set, is the application interface of operation GPRS module;
Described protocol stacking unit comprises physical layer protocol stack, data link layer protocol stack, network layer protocol stack and transport layer protocol stack, and described each protocol stack connects successively.
2. a kind of integral type data penetration transmission device based on embedded script GPRS module as claimed in claim 1, it is characterized in that: described power module is a power management chip, comprise voltage stabilizing and control unit, step-down controller control unit, charging control unit, step-down controller unit, battery equilibrium and voltage detection unit, boost converter unit, above-mentioned six unit are interconnected between two.
3. a kind of integral type data penetration transmission device based on embedded script GPRS module as claimed in claim 1, it is characterized in that: described radio frequency chip comprises independently power-supply system, described power-supply system comprises the low pressure difference linear voltage regulator unit of external power source, buck converter unit, multiple parallel connection, described external power source connects buck converter, described buck converter connects the low pressure difference linear voltage regulator unit of multiple parallel connection, and described each low pressure difference linear voltage regulator unit connects the modules of radio frequency chip respectively.
4. a kind of integral type data penetration transmission device based on embedded script GPRS module as claimed in claim 1, it is characterized in that: described data penetration transmission control unit comprises data resolution module, protocol resolution module, and described input-output unit, data resolution module, protocol resolution module connect successively.
5. a kind of integral type data penetration transmission device based on embedded script GPRS module as claimed in claim 1, is characterized in that: described input-output unit can be one or more in UART interface, multimedia interface (MMI), USB (USB), SPI interface.
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