CN104964513A - Wireless monitoring system for refrigerator temperature based on Zigbee - Google Patents
Wireless monitoring system for refrigerator temperature based on Zigbee Download PDFInfo
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- CN104964513A CN104964513A CN201510256292.XA CN201510256292A CN104964513A CN 104964513 A CN104964513 A CN 104964513A CN 201510256292 A CN201510256292 A CN 201510256292A CN 104964513 A CN104964513 A CN 104964513A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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Abstract
The invention discloses a wireless monitoring system for refrigerator temperature based on Zigbee. The wireless monitoring system comprises a control module, a radio frequency module, a display module and data acquisition modules arranged on all refrigerates. Each data acquisition module comprises a single chip microcomputer, a wireless communication module and multiple measuring nodes distributed in the refrigerators. Each measuring node comprises a microcontroller, a temperature sensor and a power unit. Each temperature sensor is used for acquisition of temperature information and transmitting the temperature information to each microcontroller. Each microcontroller is used for sending received temperature information to each single chip microcomputer. Each single chip microcomputer is used for transmitting received temperature information and position information corresponding to each measuring node to the control module. The control module is used for displaying received information and informing a worker of abnormal information by means of the radio frequency module in a text message form. The wireless monitoring system for refrigerator temperature based on Zigbee has following beneficial effects: the wireless monitoring system has a simple structure and is used conveniently and not only capable of conveniently monitoring the multiple refrigerators but also capable of actively informing the worker of abnormal information so that great practical value is obtained.
Description
Technical field
The present invention relates to freezer monitoring field, particularly relate to a kind of temperature of ice house wireless supervisory control system based on ZigBee.
Background technology
ZigBee is the low-power consumption LAN protocol based on IEEE802.15.4 standard.According to international standard regulation, ZigBee technology is the wireless communication technology of a kind of short distance, low-power consumption.This title (also known as ZigBee protocol) derives from the Eight characters dance of honeybee, due to honeybee (bee) by circle in the air and " drone " (zig) shake wing " dancing " and come to transmit pollen place azimuth information with companion, that is honeybee relies on such mode to constitute communication network in colony.
ZigBee technology has the following advantages:
1. low-power consumption.Under low power consumption standby mode, 2 joints No. 5 dry cells can support 1 node work 6 ~ 24 months, even longer.This is the outstanding advantage of ZigBee.Compare, bluetooth only can work several weeks and WiFi only to work a few hours.
The Micropelt company of TI company and Germany releases the ZigBee node of new forms of energy jointly.This node adopts the thermoelectric generator of Micropelt company to provide power supply to the ZigBee of TI company.
2. low cost.By significantly simplifying agreement (less than 1/10 of bluetooth), reduce the requirement to communication controler, by forecast analysis, with the 8 8-digit microcontroller measuring and calculating of 8051, Full Featured host node needs 32KB code, and subfunction node is few to 4KB code, and ZigBee exempts from agreement patent fee.The price of every chip block is approximately 2 dollars.
3. low rate.ZigBee is operated in the speed of 20 ~ 250kbps, provides the initial data throughput of 250kbps (2.4GHz), 40kbps (915MHz) and 20kbps (868MHz) respectively, meets the application demand of lower rate transmissions data.
4. closely.Transmission range, generally between 10 ~ 100m, after increase transmitting power, also rises to 1 ~ 3km.This refers to the distance between adjacent node.If by the relay of route and inter-node communication, transmission range can be farther.
5. short time-delay.The response speed of ZigBee is very fast, generally proceeds to duty from sleep and only needs 15ms, and node connection enters network only needs 30ms, saves electric energy further.Compare, bluetooth needs 3 ~ 10s, WiFi to need 3s.
6. high power capacity.ZigBee can adopt starlike, sheet and mesh network topology, manages some child nodes, maximum host node ALARA Principle 254 child nodes by a host node; Host node also by last layer network node control, can form at most the large net of 65000 nodes simultaneously.
7. high safety.ZigBee provides three level security patterns, comprise without security settings, use access control inventory (AccessControlList, ACL) prevent illegal acquisition number according to this and adopt Advanced Encryption Standard (AES128) symmetric cryptography, to determine its security attribute flexibly.
8. unlicensed band.Use industrial scientific medical (ISM) frequency range, 915MHz (U.S.), 868MHz (Europe), 2.4GHz (whole world).
Freezer undertakes the processing of the perishable items such as agriculture, poultry, aquatic products and the commodity such as beverage and the part raw material of industry, the necessary facility of storage task, is the important step in commodity circulation.
Along with the raising of people's living standard, the safety and sanitation of food are more and more subject to people's attention.Annual technical supervision department all will be inspected by random samples each freezer food in the whole city, find to have very most of in the agricultural product consumed every year of citizen and other perishable items because refrigerate, freezingly do not reach requirement and rotten after checking, therefore the Real-Time Monitoring of temperature of ice house is seemed particularly important for the quality assurance of stored goods.
Existing freezer is all generally that single-point detects, and in actual application, often because monitoring place too disperses, has a very wide distribution or due to inclement condition unmanned, usually brings many difficulties to test job.Although can also data be transmitted by telephone wire, often get half the result with twice the effort, and cannot wired data transfer be carried out especially for the region that communication cable cannot set up.
In addition, existing Monitoring System of Cold Store is all only generally the display of data, can not proactive notification staff.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of ZigBee temperature of ice house wireless supervisory control system.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on the temperature of ice house wireless supervisory control system of ZigBee, comprise control module, radio-frequency module, display module and be arranged on the data acquisition module of each freezer, described data acquisition module is all connected with control module, and described control module is connected with radio-frequency module, display module respectively;
Described data acquisition module comprise single-chip microcomputer, wireless communication module and several be distributed in measured node in freezer;
Described wireless communication module gathers node unit by several distribution node unit and one and forms;
The described node unit that gathers is connected with single-chip microcomputer, and described distribution node unit is connected with described measured node one_to_one corresponding;
Described node unit and the described distribution node unit of gathering is based on Zigbee protocol radio communication;
Described measured node comprises microcontroller, temperature sensor and power subsystem, and described power subsystem is connected with microcontroller, temperature sensor respectively, and described microcontroller is connected with temperature sensor, distribution node unit respectively;
Described temperature sensor is used for collecting temperature information, and is passed to microcontroller;
Described microcontroller is used for the temperature information received to send to described single-chip microcomputer;
Described single-chip microcomputer is used for the positional information of the temperature information received and its corresponding measured node to pass to described control module;
Described control module comprises indicative control unit, comparing unit and alarm unit;
Described indicative control unit is for showing the temperature in each freezer measured by each measured node;
Described comparing unit is used for comparing to the temperature value measured by each measured node in each freezer and the temperature threshold preset, when the temperature value measured is greater than default temperature threshold, the positional information of measured node corresponding for this temperature value is passed to alarm unit;
The positional information of the measured node received is sent in default phone number in the mode of note for controlling radio-frequency module by described alarm unit.
As the further prioritization scheme of temperature of ice house wireless supervisory control system that the present invention is based on ZigBee, the processor of described control module adopts 51 series monolithics.
As the further prioritization scheme of temperature of ice house wireless supervisory control system that the present invention is based on ZigBee, the processor of described control module adopts AT89S52 single-chip microcomputer.
As the further prioritization scheme of temperature of ice house wireless supervisory control system that the present invention is based on ZigBee, described temperature sensor adopts IC temperature sensor.
As the further prioritization scheme of temperature of ice house wireless supervisory control system that the present invention is based on ZigBee, the model of described IC temperature sensor is DS18B20.
As the further prioritization scheme of temperature of ice house wireless supervisory control system that the present invention is based on ZigBee, described power subsystem adopts button cell.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. can monitor multiple freezer easily, safeguard simple;
3. can proactive notification staff for freezer abnormal temperature, avoid causing heavy losses.
Detailed description of the invention
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of temperature of ice house wireless supervisory control system based on ZigBee, comprise control module, radio-frequency module, display module and be arranged on the data acquisition module of each freezer, described data acquisition module is all connected with control module, and described control module is connected with radio-frequency module, display module respectively;
Described data acquisition module comprise single-chip microcomputer, wireless communication module and several be distributed in measured node in freezer;
Described wireless communication module gathers node unit by several distribution node unit and one and forms;
The described node unit that gathers is connected with single-chip microcomputer, and described distribution node unit is connected with described measured node one_to_one corresponding;
Described node unit and the described distribution node unit of gathering is based on Zigbee protocol radio communication;
Described measured node comprises microcontroller, temperature sensor and power subsystem, and described power subsystem is connected with microcontroller, temperature sensor respectively, and described microcontroller is connected with temperature sensor, distribution node unit respectively;
Described temperature sensor is used for collecting temperature information, and is passed to microcontroller;
Described microcontroller is used for the temperature information received to send to described single-chip microcomputer;
Described single-chip microcomputer is used for the positional information of the temperature information received and its corresponding measured node to pass to described control module;
Described control module comprises indicative control unit, comparing unit and alarm unit;
Described indicative control unit is for showing the temperature in each freezer measured by each measured node;
Described comparing unit is used for comparing to the temperature value measured by each measured node in each freezer and the temperature threshold preset, when the temperature value measured is greater than default temperature threshold, the positional information of measured node corresponding for this temperature value is passed to alarm unit;
The positional information of the measured node received is sent in default phone number in the mode of note for controlling radio-frequency module by described alarm unit.
The processor of described control module adopts 51 series monolithics, preferential employing AT89S52 single-chip microcomputer.
Described temperature sensor adopts IC temperature sensor, preferentially adopts DS18B20.
Described power subsystem adopts button cell.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. based on the temperature of ice house wireless supervisory control system of ZigBee, it is characterized in that, comprise control module, radio-frequency module, display module and be arranged on the data acquisition module of each freezer, described data acquisition module is all connected with control module, and described control module is connected with radio-frequency module, display module respectively;
Described data acquisition module comprise single-chip microcomputer, wireless communication module and several be distributed in measured node in freezer;
Described wireless communication module gathers node unit by several distribution node unit and one and forms;
The described node unit that gathers is connected with single-chip microcomputer, and described distribution node unit is connected with described measured node one_to_one corresponding;
Described node unit and the described distribution node unit of gathering is based on Zigbee protocol radio communication;
Described measured node comprises microcontroller, temperature sensor and power subsystem, and described power subsystem is connected with microcontroller, temperature sensor respectively, and described microcontroller is connected with temperature sensor, distribution node unit respectively;
Described temperature sensor is used for collecting temperature information, and is passed to microcontroller;
Described microcontroller is used for the temperature information received to send to described single-chip microcomputer;
Described single-chip microcomputer is used for the positional information of the temperature information received and its corresponding measured node to pass to described control module;
Described control module comprises indicative control unit, comparing unit and alarm unit;
Described indicative control unit is for showing the temperature in each freezer measured by each measured node;
Described comparing unit is used for comparing to the temperature value measured by each measured node in each freezer and the temperature threshold preset, when the temperature value measured is greater than default temperature threshold, the positional information of measured node corresponding for this temperature value is passed to alarm unit;
The positional information of the measured node received is sent in default phone number in the mode of note for controlling radio-frequency module by described alarm unit.
2. the temperature of ice house wireless supervisory control system based on ZigBee according to claim 1, is characterized in that, the processor of described control module adopts 51 series monolithics.
3. the temperature of ice house wireless supervisory control system based on ZigBee according to claim 2, is characterized in that, the processor of described control module adopts AT89S52 single-chip microcomputer.
4. the temperature of ice house wireless supervisory control system based on ZigBee according to claim 1, is characterized in that, described temperature sensor adopts IC temperature sensor.
5. the temperature of ice house wireless supervisory control system based on ZigBee according to claim 4, is characterized in that, the model of described IC temperature sensor is DS18B20.
6. the temperature of ice house wireless supervisory control system based on ZigBee according to claim 1, is characterized in that, described power subsystem adopts button cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510256292.XA CN104964513A (en) | 2015-05-20 | 2015-05-20 | Wireless monitoring system for refrigerator temperature based on Zigbee |
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| CN201510256292.XA CN104964513A (en) | 2015-05-20 | 2015-05-20 | Wireless monitoring system for refrigerator temperature based on Zigbee |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105466569A (en) * | 2016-01-06 | 2016-04-06 | 潘祖国 | Refrigerator temperature detection system based on swinging-type infrared temperature measurement device |
| CN105517196A (en) * | 2015-11-26 | 2016-04-20 | 胡国旺 | Environment monitoring wireless sensor network measurement node based on ZigBee protocol |
| CN105571723A (en) * | 2016-01-25 | 2016-05-11 | 陈佳伟 | Refrigeration box temperature detection method based on adsorption infrared temperature detecting device |
| CN105652917A (en) * | 2016-01-06 | 2016-06-08 | 陈星宏 | Cold storage temperature control method based on infrared temperature measurement of unmanned planes |
| CN105675137A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Detection point adjustable type detection method for detecting temperature abnormity of refrigerating box |
| CN105676906A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Swing type infrared temperature measurement device-based refrigerating box temperature control method |
| CN105674680A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Cold closet temperature control method based on key detection point temperature collection |
| CN109838969A (en) * | 2019-01-23 | 2019-06-04 | 徐州鹰格电子技术有限公司 | A kind of freezer autocontrol method based on NFC |
| CN111915255A (en) * | 2020-07-31 | 2020-11-10 | 重庆电子工程职业学院 | Intelligent refrigeration house management and information sharing platform |
| CN112066636A (en) * | 2020-09-09 | 2020-12-11 | 重庆电子工程职业学院 | Intelligent refrigeration house comprehensive monitoring system and method based on ZigBee wireless sensor network |
| CN113883821A (en) * | 2021-10-11 | 2022-01-04 | 中船澄西船舶修造有限公司 | Novel quadrupole fridge monitoring system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105652917A (en) * | 2016-01-06 | 2016-06-08 | 陈星宏 | Cold storage temperature control method based on infrared temperature measurement of unmanned planes |
| CN105675137A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Detection point adjustable type detection method for detecting temperature abnormity of refrigerating box |
| CN105676906A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Swing type infrared temperature measurement device-based refrigerating box temperature control method |
| CN105466569A (en) * | 2016-01-06 | 2016-04-06 | 潘祖国 | Refrigerator temperature detection system based on swinging-type infrared temperature measurement device |
| CN105676906B (en) * | 2016-01-06 | 2017-12-05 | 吴嘉馨 | A kind of refrigerated case temperature control method based on swing type infrared temperature measurement apparatus |
| CN105571723A (en) * | 2016-01-25 | 2016-05-11 | 陈佳伟 | Refrigeration box temperature detection method based on adsorption infrared temperature detecting device |
| CN109838969A (en) * | 2019-01-23 | 2019-06-04 | 徐州鹰格电子技术有限公司 | A kind of freezer autocontrol method based on NFC |
| CN111915255A (en) * | 2020-07-31 | 2020-11-10 | 重庆电子工程职业学院 | Intelligent refrigeration house management and information sharing platform |
| CN112066636A (en) * | 2020-09-09 | 2020-12-11 | 重庆电子工程职业学院 | Intelligent refrigeration house comprehensive monitoring system and method based on ZigBee wireless sensor network |
| CN112066636B (en) * | 2020-09-09 | 2022-02-01 | 重庆电子工程职业学院 | Intelligent refrigeration house comprehensive monitoring system and method based on ZigBee wireless sensor network |
| CN113883821A (en) * | 2021-10-11 | 2022-01-04 | 中船澄西船舶修造有限公司 | Novel quadrupole fridge monitoring system |
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