The hottest cold chain logistics promotes the popu

2022-07-26
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Cold chain logistics promotes the popularization of RFID Application

according to incomplete statistics, at present, only 10% of meat, 20% of water and a small amount of milk and bean products in China flow through the standardized cold chain system with the development of electronic skills, which is far lower than the proportion of about 85% in developed countries

cold chain logistics includes four parts: cold (frozen) processing, cold (frozen) storage, cold (frozen) transportation and distribution, and cold (frozen) sales of goods. Among them, cold transport and distribution are the weaknesses of current cold chain logistics. In the process of transportation and distribution, due to large environmental changes and limited to technical and cost factors, the risk of quality accidents caused by changes in the temperature of goods is greater than that of other links

the higher requirements for temperature control in cold chain logistics, especially in transportation and distribution, will drive the application of RFID here

the specific application is realized through RFID and temperature sensing device: the real-time temperature data is obtained through the temperature sensing device, and then transmitted to the connected RFID tag for storage. The data obtained by the RFID tag is read out when the card reader approaches for utilization

through this method, early warning can be realized when the temperature changes during transportation and distribution, or the temperature changes in the process can be recorded, so as to help identify the quality changes that may be caused by temperature changes and the specific time of occurrence, and help identify quality accidents

for example, in the transportation of medical blood for the quality Crusade, the temperature should be strictly controlled at 4 ℃ (± 2 ℃). If the traditional temperature monitoring method is used, only the end-to-end node temperature can be monitored, but even if the node temperature is normal, the temperature during the transportation process cannot be guaranteed to be normal. By using RFID, we can know whether the temperature of blood changes during transportation and the possible quality changes

the large gap between China's cold chain system and developed countries means that this market has great potential. With the full opening of the logistics industry, the investment in the logistics industry will be further increased, and the scale of the cold chain logistics market will be correspondingly increased, which will bring opportunities for RFID applications

at present, there are no technical barriers to the application of RFID cold chain logistics, and the cost is still the bottleneck. Since the labels that can be written repeatedly must be used in large quantities, and the label cost is high, logistics providers should pay attention to the recycling and reuse of labels. In addition, temperature sensing devices, card readers and other equipment will also increase costs. At present, RFID applications are concentrated in the fields of sensitive or valuable commodities, such as transplant organs, medical blood, bone marrow, vaccines, drugs, precious wine, precious flowers, high-value seafood, etc. In addition to the application in sensitive and valuable fields, the longer the transportation distance and the more the turnover times of the cold chain system, the application demand of RFID is also increasing correspondingly

in common cold chain applications, although the cost of RFID is high, compared with the self-developed "black box" temperature monitoring system (such as the cargo tracking and temperature tracking system currently used by McDonald's), the above experimental standards refer to ISO, ASTM, DIN, GB, BS, JIS, etc., RFID still has the cost advantage of large-scale applications

with the continuous progress of technology to reduce the cost, the application of RFID in cold chain logistics will become more popular and have broad application prospects

information source: Modern Logistics News

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