CN113156877A - Low-cost cold chain monitored control system - Google Patents
Low-cost cold chain monitored control system Download PDFInfo
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- CN113156877A CN113156877A CN202110601374.9A CN202110601374A CN113156877A CN 113156877 A CN113156877 A CN 113156877A CN 202110601374 A CN202110601374 A CN 202110601374A CN 113156877 A CN113156877 A CN 113156877A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention relates to a low-cost cold chain monitoring system, and belongs to the field of circuit monitoring. The system comprises a data acquisition module, a monitoring center and a power supply part which are connected with each other; the data acquisition module comprises a sensor unit and a positioning unit; the monitoring center comprises a basic information management module, a data statistical analysis module and an abnormal information processing module; the data statistical analysis module is respectively in data connection with the sensor unit, the positioning unit, the basic information management module and the abnormal information processing module; the power supply part supplies power for the data acquisition module; the sensor unit and the positioning unit are arranged at the top end of the cold chain equipment; the power supply part and the sensor unit are arranged in a compression cabin of the cold chain equipment; the NB data acquisition module monitors the running state and the position change condition of each cold chain device distributed in the retailer, and the seller can monitor all cold chain devices in real time, so that manual regular inspection is avoided, the cost is saved, and manual errors are avoided.
Description
Technical Field
The invention belongs to the field of circuit monitoring, and relates to a low-cost cold chain monitoring system.
Background
Currently, there are three main disadvantages to the commercial gprs (catn) + GPS series of safety monitoring systems for gas tanks:
1. the data loss rate is high and is more than 35%. Because the split type is not adopted, the device is positioned in the compressor bin, and the signal is poor.
2. The power consumption is fast, and the battery is consumed in one month. Because GPS power consumption is high, GPRS network access is high in power consumption.
3. The positioning precision is poor and is more than 500 meters. Because the gas tank is indoors, GPS positioning is essentially ineffective and only low accuracy base station positioning can be undertaken.
Disclosure of Invention
In view of the above, the present invention is directed to a low cost cold chain monitoring system.
In order to achieve the purpose, the invention provides the following technical scheme:
the low-cost cold chain monitoring system comprises a data acquisition module, a monitoring center and a power supply part which are connected with each other;
the data acquisition module comprises a sensor unit and a positioning unit;
the monitoring center comprises a basic information management module, a data statistical analysis module and an abnormal information processing module;
the data statistical analysis module is respectively in data connection with the sensor unit, the positioning unit, the basic information management module and the abnormal information processing module;
the power supply part supplies power for the data acquisition module;
the sensor unit and the positioning unit are arranged at the top end of the cold chain equipment;
the power supply part and the sensor unit are arranged in a compression cabin of the cold chain equipment;
the abnormal information processing module comprises an equipment operation processing unit, an equipment position changing unit and an abnormal judging unit;
the data statistical analysis module operation algorithm comprises a door opening and closing frequency algorithm and a cold chain equipment loss algorithm;
the door opening and closing frequency algorithm is as follows: counting the door opening and closing times within 8s by using an acceleration sensor, filtering out vibration with the wavelength less than 15ms, permanently adding the door opening and closing times, and reporting the total door opening and closing times once every half hour;
the cold chain equipment loss algorithm is as follows: if the equipment operation processing unit detects that the cold chain equipment is powered off and the equipment position changing unit detects that the cold chain equipment moves to a position which is more than 500m away from the original position and reaches more than 24h, the abnormity determining unit determines that the cold chain equipment is lost.
Optionally, the sensor unit includes a temperature sensor, a humidity sensor, and an acceleration sensor.
Optionally, the positioning unit includes an NBIoT communication unit, a WiFi communication unit, and a bluetooth communication unit.
Optionally, the monitoring center further includes a maintenance module.
Optionally, the power supply part is a 600mAh rechargeable lithium battery.
The invention has the beneficial effects that:
(1) the NB data acquisition module monitors the running state and position change condition of each cold chain device distributed in a retailer, a seller can monitor all cold chain devices in real time, manual regular inspection is avoided, cost is saved, manual errors are avoided, the sales volume and service quality of a product seller can be improved by effectively utilizing big data analysis, and therefore the overall operation benefit is greatly improved;
(2) the low power consumption, reliable transmission and density increase of data are achieved through the communication and positioning mode of NB-IOT + WiFi, meanwhile, the position (less than ten meters) of the cold chain equipment, door opening and closing times and temperature information are uploaded in real time, a sales thermodynamic diagram is formed, the loss rate of the cold chain equipment is reduced, and the operation efficiency of the whole cold chain asset is improved. In other words: the utilization rate of the commercial refrigerator is improved (products are sold more), and larger sales and profits are obtained by using limited quantity of assets (refrigerators).
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a system diagram of the present invention;
FIG. 2 is a connection diagram of MCU and DCDC in the present invention;
fig. 3 is a circuit diagram of a WiFi positioning module in accordance with the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 3, the system is a low-cost cold chain monitoring system, and includes a data acquisition module, a monitoring center and a power supply part which are connected with each other;
the data acquisition module comprises a sensor unit and a positioning unit;
the monitoring center comprises a basic information management module, a data statistical analysis module and an abnormal information processing module;
the data statistical analysis module is respectively in data connection with the sensor unit, the positioning unit, the basic information management module and the abnormal information processing module;
the power supply part supplies power for the data acquisition module;
the sensor unit and the positioning unit are arranged at the top end of the cold chain equipment;
the power supply part and the sensor unit are arranged in a compression cabin of the cold chain equipment;
the abnormal information processing module comprises an equipment operation processing unit, an equipment position changing unit and an abnormal judging unit;
the data statistical analysis module operation algorithm comprises a door opening and closing frequency algorithm and a cold chain equipment loss algorithm;
the door opening and closing frequency algorithm is as follows: counting the door opening and closing times within 8s by using an acceleration sensor, filtering out vibration with the wavelength less than 15ms, permanently adding the door opening and closing times, and reporting the total door opening and closing times once every half hour;
the cold chain equipment loss algorithm is as follows: if the equipment operation processing unit detects that the cold chain equipment is powered off and the equipment position changing unit detects that the cold chain equipment moves to a position which is more than 500m away from the original position and reaches more than 24h, the abnormity determining unit determines that the cold chain equipment is lost.
The sensor unit includes a temperature sensor, a humidity sensor, and an acceleration sensor.
The positioning unit comprises an NBIoT communication unit, a WiFi communication unit and a Bluetooth communication unit.
The monitoring center also comprises a maintenance module.
The power supply part is a 600mAh rechargeable lithium battery.
The parameters of the system are as follows:
positioning accuracy: within 10 m;
the monitoring mode is as follows: positioning/vibration/temperature, and combinational logic;
alarm information: <10 seconds;
positioning information: once in half an hour (unadjustable);
a battery: a 600mAh rechargeable lithium battery;
working temperature: -20 to 65 ℃;
a housing: and (3) ABS material.
The capacitor C120 in the DCDC is simultaneously connected to a pin 47 of the MCU; the capacitor C120 is grounded;
the capacitor C120 is respectively connected with the resistor R101 and the resistor R100 which are connected in series in parallel;
the resistor R100 is connected with the capacitor C101 in parallel and then connected with the inductor L100 in series;
the inductor L100 is connected to a switch control pin of a voltage source U100, and the capacitor C101 is connected to an output voltage feedback pin of the voltage source U100;
a data signal end of the voltage source U100 is connected with a capacitor C100 and a power supply monitoring input VBAT port, and the capacitor C100 is grounded;
the power supply cathode of the voltage source U100 is grounded;
an enable pin of the voltage source U100 is connected with an enable pin port of the DCDC;
a pin 23 of the MCU is connected with a control port of the impact force sensor through a control line SCL;
the pin 24 of the MCU is connected with the data port of the impact force sensor through a data line SDA;
a pin 42 of the MCU is connected to a transmitting end TX of the WiFi positioning module;
the pin 41 of the MCU is connected to the receiving terminal RX of the WiFi positioning module.
The capacitance C120 is 10 muF, and the voltage thereof is 6.3V.
The resistance R101 is 200k omega, and the resistance R100WEI 300k omega.
The capacitor C101 is 22pF and is a COG capacitor.
The capacitance C100 is 4.7 muF, and the voltage thereof is 16V.
The reset end of the WiFi positioning module is connected with a resistor R600;
and the WiFi positioning module is also connected with the input and output of an external crystal oscillator and an antenna.
The resistance R600 is 1k Ω.
The invention is a split structure, and the sensor unit and the positioning unit are arranged at the top end of the cold chain equipment; and the power supply part and the sensor unit are arranged in a compression cabin of the cold chain equipment, and the advantages are as follows: the top is high, and the signal is good, can the perception switch door number of times moreover. Simultaneously, the charging part is placed in the compressor bin, so that the high-voltage wire input end is easily accepted, and the temperature sensor is also easily inserted into the cold chain equipment.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (5)
1. Low-cost cold chain monitored control system, its characterized in that: the system comprises a data acquisition module, a monitoring center and a power supply part which are connected with each other;
the data acquisition module comprises a sensor unit and a positioning unit;
the monitoring center comprises a basic information management module, a data statistical analysis module and an abnormal information processing module;
the data statistical analysis module is respectively in data connection with the sensor unit, the positioning unit, the basic information management module and the abnormal information processing module;
the power supply part supplies power for the data acquisition module;
the sensor unit and the positioning unit are arranged at the top end of the cold chain equipment;
the power supply part and the sensor unit are arranged in a compression cabin of the cold chain equipment;
the abnormal information processing module comprises an equipment operation processing unit, an equipment position changing unit and an abnormal judging unit;
the data statistical analysis module operation algorithm comprises a door opening and closing frequency algorithm and a cold chain equipment loss algorithm;
the door opening and closing frequency algorithm is as follows: counting the door opening and closing times within 8s by using an acceleration sensor, filtering out vibration with the wavelength less than 15ms, permanently adding the door opening and closing times, and reporting the total door opening and closing times once every half hour;
the cold chain equipment loss algorithm is as follows: if the equipment operation processing unit detects that the cold chain equipment is powered off and the equipment position changing unit detects that the cold chain equipment moves to a position which is more than 500m away from the original position and reaches more than 24h, the abnormity determining unit determines that the cold chain equipment is lost.
2. The low cost cold chain monitoring system of claim 1, wherein: the sensor unit includes a temperature sensor, a humidity sensor, and an acceleration sensor.
3. The low cost cold chain monitoring system of claim 1, wherein: the positioning unit comprises an NBIoT communication unit, a WiFi communication unit and a Bluetooth communication unit.
4. The low cost cold chain monitoring system of claim 1, wherein: the monitoring center also comprises a maintenance module.
5. The low cost cold chain monitoring system of claim 1, wherein: the power supply part is a 600mAh rechargeable lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601374.9A CN113156877A (en) | 2021-05-31 | 2021-05-31 | Low-cost cold chain monitored control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601374.9A CN113156877A (en) | 2021-05-31 | 2021-05-31 | Low-cost cold chain monitored control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113156877A true CN113156877A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110601374.9A Pending CN113156877A (en) | 2021-05-31 | 2021-05-31 | Low-cost cold chain monitored control system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080134698A1 (en) * | 2006-12-08 | 2008-06-12 | Samsung Electronics Co., Ltd. | Refrigerator and control method thereof |
| JP2011132015A (en) * | 2009-12-25 | 2011-07-07 | Toshiba Elevator Co Ltd | Door device of elevator |
| JP2012176708A (en) * | 2011-02-28 | 2012-09-13 | Fuji Electric Co Ltd | Electric door control device |
| CN103197621A (en) * | 2013-03-04 | 2013-07-10 | 李代万 | Cold chain monitor, cold chain monitoring system and control method of cold chain monitoring system |
| CN110517430A (en) * | 2019-07-26 | 2019-11-29 | 安徽静深实业有限公司 | A kind of road lighting cable anti-thefting monitoring method |
| CN209765059U (en) * | 2019-03-21 | 2019-12-10 | 昆明凌宇飞星信息科技股份有限公司 | Beidou positioner based on RFID control |
| CN110896511A (en) * | 2019-12-10 | 2020-03-20 | 深圳市沃特沃德股份有限公司 | Earphone control method and device, storage medium and computer equipment |
| CN111536747A (en) * | 2020-04-21 | 2020-08-14 | 苏州调皮鱼电子科技有限公司 | Monitoring system of commercial refrigerator |
-
2021
- 2021-05-31 CN CN202110601374.9A patent/CN113156877A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080134698A1 (en) * | 2006-12-08 | 2008-06-12 | Samsung Electronics Co., Ltd. | Refrigerator and control method thereof |
| JP2011132015A (en) * | 2009-12-25 | 2011-07-07 | Toshiba Elevator Co Ltd | Door device of elevator |
| JP2012176708A (en) * | 2011-02-28 | 2012-09-13 | Fuji Electric Co Ltd | Electric door control device |
| CN103197621A (en) * | 2013-03-04 | 2013-07-10 | 李代万 | Cold chain monitor, cold chain monitoring system and control method of cold chain monitoring system |
| CN209765059U (en) * | 2019-03-21 | 2019-12-10 | 昆明凌宇飞星信息科技股份有限公司 | Beidou positioner based on RFID control |
| CN110517430A (en) * | 2019-07-26 | 2019-11-29 | 安徽静深实业有限公司 | A kind of road lighting cable anti-thefting monitoring method |
| CN110896511A (en) * | 2019-12-10 | 2020-03-20 | 深圳市沃特沃德股份有限公司 | Earphone control method and device, storage medium and computer equipment |
| CN111536747A (en) * | 2020-04-21 | 2020-08-14 | 苏州调皮鱼电子科技有限公司 | Monitoring system of commercial refrigerator |
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