CN203520082U

CN203520082U - Intelligent cold storage condition monitoring wireless network terminal device based on LPC single chip microcomputer

Info

Publication number: CN203520082U
Application number: CN201320625086.8U
Authority: CN
Inventors: 冯万利; 邵鹤帅; 庄军
Original assignee: HUAI'AN FUN SOFTWARE Co Ltd
Current assignee: HUAI'AN FUN SOFTWARE Co Ltd
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-04-02
Anticipated expiration: 2023-10-10

Abstract

The utility model discloses an intelligent cold storage condition monitoring wireless network terminal device based on an LPC1788. The device mainly comprises a main control processing module, a CAN communication module, a GPRS module, and an RF communication module. According to the intelligent cold storage condition monitoring wireless network terminal device, environmental parameter information and goods information in the cold storage can be acquired by RF communication nodes; the acquired data are sent to a CC430 communication module of the main control processing module; the acquired data are analyzed by the main control module; and uploading of the data has wired and wireless two communication ways, one way is that the data are transmitted to a monitoring center via a CAN bus, and the other way is that the data are sent to the monitoring center or the cell phone of an administrator via the GPRS module, thereby facilitating the administrator to carry out data processing, data analysis and direct data observation in the monitoring center. The intelligent cold storage condition monitoring wireless network terminal device based on the LPC1788 has the advantages of miniaturization, low cost, low power consumption, portability, high precision, intelligence and the like.

Description

Intelligent freezer state monitoring wireless network terminating unit based on LPC single-chip microcomputer

Technical field

The utility model belongs to ambient condition Real-time Monitor Technique field, relates in particular to Real-Time Monitoring and the monitoring technique of freezer goods turntable and internal environment.

Background technology

At present, China is agricultural production big country, agricultural product production quantity is very plentiful, but the aftertreatment of adopting at agricultural product, what especially refrigeration and fresh-keeping aspect were also done is nowhere near, these problems cause corresponding intellectual management degree lower, the commercialized degree of agricultural product is not high, the market competitiveness is not strong, appreciation potential performance in postpartum is not out, freezer is as agricultural product cold working, the basic facilities that store, preservation by low temperature for perishable farm products, processing circulation, guarantee food quality and guarantee that food security has important effect, it is the key link of agricultural product cold chain.Therefore be necessary to greatly develop technique of refrigeration, build robotization freezer.And study intelligent storehouse temperature TT&C system, to realize, temperature is controlled and to the monitoring of freezer and management, have very real meaning.Along with the development of wireless sensor network technology, for realizing robotization, networking, the intellectuality of freezer condition monitoring, new approaches are provided.

Summary of the invention

Goal of the invention: for problem and the defect of above-mentioned existence, the utility model utilizes CAN bus advantage to develop a kind of intelligent freezer monitoring terminal set of the wireless network based on LPC single-chip microcomputer, there is environmental parameter in freezer cargo state and storehouse and gather the functions such as wireless transmission, Real-Time Monitoring monitoring, realize low-power consumption, low cost, robotization, networking, the intellectuality of freezer monitoring.

Technical scheme: to achieve the above object of the invention, the utility model is by the following technical solutions: a kind of intelligent freezer state monitoring wireless network terminating unit based on LPC single-chip microcomputer, comprise main control chip, CAN communication module, GPRS module and RF communication module, wherein: described RF communication module, receive freezer status information and freezer environmental parameter information that freezer node transmits, and realize short-distance wireless communication with main control chip and send data to main control chip; Described CAN communication module, is connected with main control chip by CAN bus communication mode; Described GPRS module, adopts serial ports asynchronous communication means and main control chip to realize remote radio communication; Described main control chip, by CAN communication module, receive the data of RF communication module transmission, and realize signal long-distance transmissions by GPRS module and Surveillance center, send data to Surveillance center data are carried out to analyzing and processing, thereby realize the monitoring of freezer data Real-Time Monitoring.

As preferably, described main control chip adopts LPC1788; Described CAN communication module adopts chip TJA1040; GPRS module adopts MG323 module; Described RF communication module adopts CC430F5137 chip.

Beneficial effect: compared with prior art, it is multi-functional in the intelligent freezer condition monitoring system of one that the utility model is realized cargo state monitoring in the freezer of wireless network, environmental monitoring, communication etc., the integrated level that not only makes full use of ARM chip is high, the feature such as function is strong, cost performance is high, functional interface is abundant, dependable performance, and utilize wireless network to transmit Monitoring Data, effectively realized the real-time detecting & monitoring to environment in cargo state and freezer; Have that portability, cost are low, easy to maintenance, robotization, intelligent degree advantages of higher, be highly suitable for agricultural product freezer monitoring management, for promoting automatic management level, saving manpower and fund, have a significant effect, there is higher engineering using value and market popularization value, have very wide application prospect.

Accompanying drawing explanation

Fig. 1 is the theory diagram of terminal installation of wireless network described in the utility model;

Fig. 2 is the principle schematic of main control chip described in the utility model;

Fig. 3 is the principle schematic of CAN communication module described in the utility model;

Fig. 4 is the principle schematic of RF communication module described in the utility model.

Wherein, main control chip 1, CAN communication module 2, GPRS module 3, RF communication module 4.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.

The intelligent freezer state monitoring wireless network terminating unit of the utility model based on LPC1788 is mainly comprised of master control processing module, CAN communication module, GPRS module, RF communication module.Main control chip LPC1788 is used serial ports asynchronous communication means to communicate by letter with MG323, uses GPRS to carry out remote radio communication, realizes the transmission of Surveillance center's command reception and image data.Obtaining of freezer status information and environmental parameter is that the serial ports of main control chip is connected with the serial ports in CC430F5137 chip, by RF, communicated by letter and read the freezer parameter information that freezer interior nodes sends.RF communication module is that CC430F5137 chip receives the parameter information data that gather from sensor, and carries out short-distance wireless communication between main control chip RF communication module, receives capture program instruction, sends the environmental data gathering.Main control chip will gather parameter information data and be sent to Surveillance center by CAN bus and GPRS module, and Surveillance center is further processed and analyzes according to Monitoring Data, thereby realize data Real-Time Monitoring monitoring in freezer.

With reference to Fig. 1, Fig. 1 represents the utility model theory diagram.Main control module receives Surveillance center's instruction by CAN bus or GPRS functional module, according to command request, obtains environmental parameter in freezer goods information, freezer, and two parts partial information is sent to Surveillance center, realizes parameter information data acquisition and transmission.

With reference to Fig. 2, Fig. 2 represents the utility model master control processing module schematic diagram.Acp chip is to take the LPC1788 that Cortex-M3 is kernel, it includes LCD controller, USB is Device/Host/OTG controller at full speed, CAN bus controller, SPI, SSP, IIC, the resources such as IIS and external storage controller EMC, CPU (central processing unit) is read GPRS module from the instruction of Surveillance center or is received the monitored instruction from CAN bus by UART1, main control chip sends to RF communication module by instruction by UART1, RF freezer interior nodes receives after instruction, gather two parts data, UART1 interface receives the environmental parameter that cabin sensor node sends, UART1 interface receives cargo state and environmental parameter information in freezer, and GPRS module realizes the wireless transmission of data, and CAN communication module realizes closely wire transmission.The exterior storage of master control processing module comprises that the AT24C16 storage unit of iic bus and the SD card of MCI interface read.

With reference to Fig. 3, Fig. 3 represents the utility model terminal CAN communication module schematic diagram.CAN communication module is that acp chip is TJA1040, it meets ISO11898 standard completely, it is the interface between controller area network protocol controller and physical bus, for bus provides differential sending function, for CAN controller provides differential receiving function, mainly realize the transmission of monitored instruction and the wire transmission of image data.

With reference to Fig. 4, Fig. 4 represents the utility model terminal RF communication module schematic diagram.RF communication is divided into two parts node in freezer and outside storehouse, and the node in storehouse is mainly responsible for gathering cargo state and internal environment parameter, and storehouse exterior node is responsible for receiving and assigning instruction, transmits image data simultaneously.The CC430F5137 that the microcontroller of this communication module adopts, single chip radio frequency solution has reduced the complicacy of system and has simplified radio frequency design, makes whole acquisition node volume little, low in energy consumption.In native system, when node is not waken up, CC430 is operated under low-power consumption mode 3 (LPM3), once be waken up, proceeds to active state, activated sensors, make it carry out each data sampling, after sampled value is stable, preserve sampling numerical value this time, reception is returned after the order of sampling numerical value, and sampled value is transferred to storehouse exterior node.Power supply is mainly supplied with by battery, is responsible for whole node power supply.

Claims

1. the intelligent freezer state monitoring wireless network terminating unit based on LPC single-chip microcomputer, is characterized in that: comprise main control chip, CAN communication module, GPRS module and RF communication module, wherein:

Described RF communication module, receives freezer status information and freezer environmental parameter information that freezer node transmits, and realizes short-distance wireless communication with main control chip and send data to main control chip;

Described CAN communication module, is connected with main control chip by CAN bus communication mode;

Described GPRS module, adopts serial ports asynchronous communication means and main control chip to realize remote radio communication;

Described main control chip, by CAN communication module, receive the data of RF communication module transmission, and realize signal long-distance transmissions by GPRS module and Surveillance center, send data to Surveillance center data are carried out to analyzing and processing, thereby realize the monitoring of freezer data Real-Time Monitoring.

2. the intelligent freezer state monitoring wireless network terminating unit based on LPC single-chip microcomputer according to claim 1, is characterized in that: described main control chip adopts LPC1788; Described CAN communication module adopts chip TJA1040; GPRS module adopts MG323 module; Described RF communication module adopts CC430F5137 chip.