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1. Project background
Medical waste is directly or indirectly infectious, toxic and other hazardous waste generated by medical and health institutions in medical treatment, prevention, health care and other related activities. Medical waste contains a large number of pathogenic microorganisms and chemical agents, and has the dangerous characteristics of space infection, acute infection and latent infection. The harm of its viruses and bacteria is dozens or even thousands of times that of ordinary urban domestic garbage.
The current medical waste management system in China is very imperfect, and the environmental pollution of medical waste has not been controlled from the source. The annual amount of medical waste generated in my country has reached millions of tons, but the centralized disposal rate is only 10%. In the management process, the collection, storage, transportation, and disposal of medical waste have not been supervised throughout the entire process. A large amount of data and information are relied on Manual collection, using paper records, difficult to save, easy to break and lose, difficult to query, work quality and efficiency are completely dependent on people’s experience and sense of responsibility, management quality cannot be guaranteed, resulting in medical waste mixed with domestic waste or domestic waste mixed with medical waste Circumstances occur from time to time, causing secondary pollution to seriously threaten people’s health, and once the virus flows into society with waste, it will pose a huge threat to social stability and human health.
The traditional supervision model has been difficult to meet the supervision requirements, accidents of medical waste caused by accidental or intentional omissions by human beings have occurred from time to time, and such incidents that occur continuously throughout the country are constantly sounding the alarm for us. It is of great significance to explore a new medical waste supervision system to realize safer and more efficient supervision of medical waste.
2. Project content
RFID radio frequency identification technology is an emerging high-tech technology that has caused changes in the field of automatic identification after barcodes. It uses the penetrability of wireless electromagnetic waves, the characteristics of long-distance transmission and high-speed data exchange, and achieves identification through specific protocols. Technology for automatic identification of item information. In the identification of target objects, compared with the currently widely used barcode technology, RFID technology has essential advantages: wireless long-distance reading and writing, penetrating reading and writing, and reading and writing under high-speed movement , Store more data, can be used in harsh environments and so on. Therefore, RFID technology has completely subverted the traditional management mode in many automatic identification fields.
Through the research on the medical waste management process, with RFID technology as the core, a new type of medical waste management system based on RFID technology is constructed to supervise the whole process of the collection, transfer, and destruction of medical waste, eliminate possible loopholes, and effectively prevent causes During the collection, transfer, and destruction of medical waste, various viruses and other pathogenic bacteria sources can be spread to achieve the tracking and intelligent management of medical waste from collection and transportation to sorting, utilization, treatment, and disposal. At the same time, the flow of waste is reduced. Manage the intensity of statistical work, improve the scientificity and preparation of statistical data, further standardize and informatize medical waste management, and improve the level of medical waste supervision. As the agent of ThingMagic, Shenzhen Quanshunhong Technology Co., Ltd. is actively developing the Internet of Things environment in China, focusing on providing customers with UHF UHF RFID modules, UHF RFID readers, RFID handheld terminals, etc. Long-distance, multi-tag, low power consumption, small size, industrial-grade professional, high-performance RFID equipment. As a leading RFID brand-Trimble’s ThingMagic agent, Quanshunhong Technology provides a full range of ThingMagic products.
3. System design
The RFID tag is uniquely bound to the trash can containing medical waste. In the medical waste room, the waste information contained in the trash can is associated with the tag information and uploaded to the background system. When the waste arrives at the incineration center, the waste information obtained again is compared with the information in the system, and the incineration process is confirmed to be correct, otherwise an alarm will be issued.
The overall design framework of the system is as follows:
3.1 Medical waste room
The medical waste room completes the binding of the RFID tag to the trash can containing the medical waste, and after the waste is weighed, the weighing information is written into the electronic tag.
The trash can with the electronic tag installed will be weighed together with the medical waste. When the RFID reader reads the electronic tag information of the trash can, it obtains the weight of the medical waste from the weighing system and writes the weight information into the electronic tag. middle.
3.2 Incineration Center
In the incineration center, the trash can containing medical waste is placed on the conveyor belt. When it reaches the weighing position, the tag of the trash can is read by RFID. At the same time, it will be weighed again and the data will be sent back to the back-end management system, and the management system will get it. The weight information of the trash can is compared with the important information stored in the electronic tag of the trash can. If there is no error, the follow-up incineration operation will be carried out. Otherwise, the alarm will be reported and the staff will be prompted to deal with it.
3.3 System process
The RFID medical waste management system consists of an intelligent integrated RFID reader, weight collection device, display system, sound and light prompt system, server, information transmission system, etc. The specific operation process is as follows:
1. When the collector arrives at the medical waste collection and transportation point, the person in charge of the medical waste at the hospital will first show the legally authorized electronic tag, open the collection and delivery electronic flow, and record the time, location, and personnel information, and upload it to the control center server at the same time. Electronic records.
2. The person in charge of the consignee shall issue a legally authorized electronic label, record the time, location, and personnel information, and upload it to the server at the same time. After the server is successfully compared and recorded, the system automatically starts the collection and transportation electronic flow to complete the electronic handover of medical waste. The entire process is completed within 1 second.
3. Weigh each bucket of medical waste, and write the information of the person in charge, time, location, and weight of both parties to the electronic tag through RFID technology, and upload it to the server for record.
4. After the medical waste is transported and distributed, it arrives at the incineration center, the RFID system reads the tag information, and automatically compares the information, uploads the comparison result to the incineration center monitoring room, and sends an alarm for the failure of the comparison.
4. Equipment selection
This system is used in the management of medical waste. The use environment is relatively special, and the equipment needs to have good environmental adaptability, and can ensure efficient and stable work in harsh environments. Among them, the integrated reader is the core data acquisition equipment. The ThingMagic Astra-EX UHF reader/writer of Shenzhen Quanshunhong Technology Co., Ltd. has a multi-tag reading processing capacity of 750 tags/sec and a reception of -75dBm. Sensitivity, fast tag reading ability, can excellently complete the acquisition of trash can tag information in motion, and at the same time, lower receiving sensitivity can still accurately obtain tag information under the premise of on-site environmental interference. ThingMagic Astra-EX all-in-one reader, equipped with high-performance antennas, can be deployed more easily and flexibly.
As the agent of ThingMagic, Shenzhen Quanshunhong Technology Co., Ltd. is actively developing the Internet of Things environment in China, focusing on providing customers with UHF UHF RFID modules, UHF RFID readers, RFID handheld terminals, etc. Long-distance, multi-tag, low power consumption, small size, industrial-grade professional, high-performance RFID equipment. As a leading RFID brand-Trimble’s ThingMagic agent, Quanshunhong Technology provides a full range of ThingMagic products.
With a professional technical team, high-quality service and preferential prices, Shenzhen Quanshunhong Technology provides our customers with world-class RFID equipment solutions and high-quality after-sales service.
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