CN203166990U

CN203166990U - Multiple-interface type network terminal with multiple functions

Info

Publication number: CN203166990U
Application number: CN 201220527170
Authority: CN
Inventors: 杨宁; 黄军; 陈天; 齐艳铭
Original assignee: Sichuan Jiuzhou Video Technology Co ltd
Current assignee: Sichuan Jiuzhou Video Technology Co ltd
Priority date: 2012-10-16
Filing date: 2012-10-16
Publication date: 2013-08-28
Anticipated expiration: 2022-10-16

Abstract

The utility model discloses a multiple-interface type network terminal with multiple functions, which relates to the technical field of network terminals. A temperature acquisition module (1) and an analog quantity input acquisition circuit (5) are connected with an MCU micro controller (3). The MCU micro controller (3) is respectively connected with an RFID module interface (2), an external storage module (6) and a network physical layer module (9). The MCU micro controller (3) is connected with a relay control circuit (4). The network physical layer module (9) is connected with a remote host (8). A power supply module (7) is respectively connected with the temperature acquisition module (1), the RFID module interface (2), the MCU micro controller (3), the relay control circuit (4), the analog quantity input acquisition circuit (5), the external storage module (6) and the network physical layer module (9). The multiple-interface type network terminal with multiple functions realizes network data communication of low cost, high flexibility, low cost and high stability, improves the flexibility, and shortens the development cycle.

Description

A kind of have multi-functional many interface types network terminal

Technical field:

The utility model relates to network terminal technical field, is specifically related to many interface types network terminal of a kind of gate inhibition's of having control, temperature acquisition, analog acquisition and RFID data read function.

Background technology:

Along with the continuous development of China's science and technology, embedded networking applications is with its low cost, high efficiency and flexibility, makes that it carries out long-range multiple terminals at various needs, multi-platform exchanges data is widely adopted in using.Gate inhibition in the past, data acquisition system or similar system generally adopt the RS-485 bus or use expensive ICP/IP protocol (mainly refer to use in Linux embedded system or Windows CE system ICP/IP protocol) to finish here.The former cost is low, but all uses under the bigger occasion very inconvenient in terminal quantity and kind; And latter's transfer of data stability and high efficiency and is adapted at various types of terminal rooms and carries out transfer of data, but its system itself has relatively high expectations to hardware resource, makes that whole cost is higher.

The utility model content:

The purpose of this utility model provides a kind of multi-functional many interface types network terminal that has, and it has realized low cost, high degree of flexibility, low, the stable high network data communication of cost, has improved flexibility, has shortened the cycle of exploitation simultaneously.

In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises temperature collect module 1, RFID module interface 2, MCU microcontroller 3, control relay circuit 4, analog quantity input Acquisition Circuit 5, outer memory module 6, power module 7, distance host 8, networked physics layer module 9, temperature collect module 1, analog quantity input Acquisition Circuit 5 all is connected with MCU microcontroller 3, MCU microcontroller 3 respectively with RFID module interface 2, outer memory module 6, networked physics layer module 9 interconnects, MCU microcontroller 3 is connected with control relay circuit 4, networked physics layer module 9 interconnects with distance host 8, power module 7 respectively with temperature collect module 1, RFID module interface 2, MCU microcontroller 3, control relay circuit 4, analog quantity input Acquisition Circuit 5, outer memory module 6, networked physics layer module 9 connects.

Described MCU microcontroller 3 is to be the control core with STM32F207.

The described power module 7 core core hearts are LM2576, and it is input as DC12V, are output as 3.3V and supply with MCU controller and other peripheral circuits.

Described temperature collect module 1 can adopt multiple scheme to realize, first kind of scheme is to carry out monobus by the DS18B20 digital temperature sensor on the module with STM32F207 control core to communicate by letter to realize; Second kind of scheme is that the built-in temperature sensor that directly uses STM32F207 control core to carry is realized; The third scheme is to adopt the outside temperature sensors of high precision of external analog amount input interface to realize.

The third above-mentioned temperature sensor scheme is mainly used in the occasion that temperature accuracy is had relatively high expectations.

Described RFID read functions leaves the corresponding interface in module, only need add the RFID read module in concrete the application and realize, STM32F207 control core directly reads the useful information after its conversion, makes system's operation more efficient.

Above-mentioned analog quantity is input as spare interface, is mainly used in the collection of various simulation output type sensor signals.

Described networked physics layer module 9 interface chips are DP83848.

Described networked physics layer module 9 adopts the M-II interface and uses the lwip protocol stack to be operated under the TCP pattern to guarantee reliability of data transmission.

The utlity model has RTC real-time clock function, be used for the relevant time of record temperature, analog acquisition and the event of swiping the card.

The utility model has been realized low cost, high degree of flexibility, low, the stable high network data communication of cost.The MCU microcontroller self has the ethernet physical layer interface, can realize slitless connection with the physical chip of multiple interfaces, easily realizes network communicating function.And this MCU also has peripheral hardware resource on other abundant sheet, the general function of in application, not merely finishing network data communication, can also directly functions such as data acquisition, external interface device control be rolled into one, further reduced cost, improve flexibility, also shortened the cycle of exploitation simultaneously.

Description of drawings:

Fig. 1 is structural representation of the present utility model,

Fig. 2 is the circuit theory diagrams of MCU microcontroller 3 in the utility model,

Fig. 3 is the circuit theory diagrams of power module 7 in the utility model,

Fig. 4 is the circuit theory diagrams of networked physics layer module 9 in the utility model,

Fig. 5 is the circuit theory diagrams of outer memory module 6 in the utility model,

Fig. 6 is flow chart of the present utility model.

Embodiment:

Referring to Fig. 1-Fig. 6, this embodiment adopts following technical scheme: it comprises temperature collect module 1, RFID module interface 2, MCU microcontroller 3, control relay circuit 4, analog quantity input Acquisition Circuit 5, outer memory module 6, power module 7, distance host 8, networked physics layer module 9, temperature collect module 1, analog quantity input Acquisition Circuit 5 all is connected with MCU microcontroller 3, MCU microcontroller 3 respectively with RFID module interface 2, outer memory module 6, networked physics layer module 9 interconnects, MCU microcontroller 3 is connected with control relay circuit 4, networked physics layer module 9 interconnects with distance host 8, power module 7 respectively with temperature collect module 1, RFID module interface 2, MCU microcontroller 3, control relay circuit 4, analog quantity input Acquisition Circuit 5, outer memory module 6, networked physics layer module 9 connects.

Described MCU microcontroller 3 is to be the control core with STM32F207.

Described temperature collect module 1 can adopt multiple scheme to realize, first kind of scheme is to carry out monobus by the DS 18B20 digital temperature sensor on the module with STM32F207 control core to communicate by letter to realize; Second kind of scheme is that the built-in temperature sensor that directly uses STM32F207 control core to carry is realized; The third scheme is to adopt the outside temperature sensors of high precision of external analog amount input interface to realize.

Described networked physics layer module 9 interface chips are DP83848.

This embodiment has RTC real-time clock function, is used for the relevant time of record temperature, analog acquisition and the event of swiping the card.

This embodiment is powered as system with outside DC-12V power supply, and other circuit except power module are worked under the situation of power module output 3.3V power supply.Temperature collect module 1, RFID module interface 2, control relay circuit 4, analog quantity input Acquisition Circuit 5, outer memory module 6, networked physics layer module 9 communicate by bus timesharing and the MCU microcontroller 3 that defines respectively, initiate network service to distance host 8 in case of necessity.When MCU microcontroller 3 receives the networking command of reserving in advance, also can according to networking command with parameter restrictive condition, reference conditions and the running status of module itself are changed, and beam back corresponding data.

This embodiment is initiated network service to remote server following three kinds of situations: when the information of (1) temperature or analog acquisition conversion surpasses the alarm threshold value, can trigger the network service to remote server; (2) when the RFID event of swiping the card produces, terminal can be initiated network service to remote server card using information is issued the remote server processing with other parameter informations that collect; (3) when distance host sends predetermined command word to this terminal, this terminal can be made amendment to parameter own and returns related data according to order.

In this embodiment temperature acquisition with can analog acquisition the working method of part: temperature adopts the mode of fixed time interval collection to carry out with analog quantity, has only the network service of just initiating when correlation arrives or surpass the alarm threshold of presetting to remote server.

The swipe the card working method of interface of this embodiment repeat circuit and RFID: relay itself does not transmit information to the MCU microcontroller, and a folk prescription is to being controlled by controller.The RFID module interface has interrupt function, in case the event of swiping the card takes place, the response in time of MCU microcontroller is also handled, and this card using information and other parameters of organizing in advance can be passed to remote server together after finishing dealing with.

The working method of memory module in this embodiment: memory module has two effects in terminal: (1) is having the relevant parameter of the temporary temperature that collects under the situation of demand or analog quantity definition; (2) under the situation that network connection disconnects, be used for storage card using information and relevant parameter, in order to behind network recovery, its canned data is passed to remote server.

The working method of RTC in this embodiment: the RTC real-time clock module is mainly used in recording the temporal information that all events of terminal module produce, and these parameter and card using informations that have the time will carry out final storage administration by network sensing remote server.

This embodiment has realized low cost, high degree of flexibility, low, the stable high network data communication of cost.The MCU microcontroller self has the ethernet physical layer interface, can realize slitless connection with the physical chip of multiple interfaces, easily realizes network communicating function.And this MCU also has peripheral hardware resource on other abundant sheet, the general function of in application, not merely finishing network data communication, can also directly functions such as data acquisition, external interface device control be rolled into one, further reduced system cost, improve flexibility, also shortened the cycle of exploitation simultaneously.

Claims

1. one kind has multi-functional many interface types network terminal, it is characterized in that it comprises temperature collect module (1), RFID module interface (2), MCU microcontroller (3), control relay circuit (4), analog quantity input Acquisition Circuit (5), outer memory module (6), power module (7), distance host (8), networked physics layer module (9), temperature collect module (1), analog quantity input Acquisition Circuit (5) all is connected with MCU microcontroller (3), MCU microcontroller (3) respectively with RFID module interface (2), outer memory module (6), networked physics layer module (9) interconnects, MCU microcontroller (3) is connected with control relay circuit (4), networked physics layer module (9) and distance host (8) interconnect, power module (7) respectively with temperature collect module (1), RFID module interface (2), MCU microcontroller (3), control relay circuit (4), analog quantity input Acquisition Circuit (5), outer memory module (6), networked physics layer module (9) connects.

2. a kind of multi-functional many interface types network terminal that has according to claim 1 is characterized in that described MCU microcontroller (3) is is the control core with STM32F207.

3. a kind of multi-functional many interface types network terminal that has according to claim 1 is characterized in that described power module (7) the core core heart is LM2576, and it is input as DC12V.

4. a kind of multi-functional many interface types network terminal that has according to claim 1 is characterized in that described networked physics layer module (9) interface chip is DP83848.