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WakeMed Health Medical Center is deploying a system based on the application of RFID technology provided by RadarFind to track assets in its two-story, 114-bed hospital. If the asset location is wrong, the system will call the police.
Once WakeMed installs this system this summer, the medical center will use it to improve asset management and keep it clean so that it can be reused in time. WakeMed also allows RadarFind to participate in order to be able to test Cary products in the future to enhance performance.
According to Mary Shelton, director of the organization’s information consultation department, WakeMed has opened many branches in Raleigh and other North Carolina cities and has been seeking an RFID solution for two years. Shelton said that through information systems and company strategic planning, we have decided to use RFID technology to track and place assets. We prefer to follow the latest applications that existing technology can provide. WakeMed chose to use the RFID tracking system in its Gary Hospital as its starting point because it is relatively small compared to the WakeMed Raleigh campus and the scale of deployment is feasible.
The staff of WakeMed Care Clinic usually spend a lot of time searching for patient care equipment, such as infusion tubes, stretchers, remote monitors and wheelchairs. To make matters worse, the used equipment must be cleaned before being reused. However, since the relevant personnel do not know that the equipment is already idle, there are often delays in this link.
Shelton explained that WakeMed chose RadarFind’s solution in part because the technology can be installed in a short time. The RadarFind interrogator does not need to be wired in the ward, and then connected to the back-end system, but directly plugged into an outlet and wirelessly transmits the collected data. She said that with this product, we don’t have to interrupt patient care. As part of the designation process for this plan, Shelton inspected Wayne Memorial Hospital in Goldsboro, North Carolina, where the system provided by RadarFind has been installed.
RadarFind’s active ultra-high-voltage and high-frequency (UHF) RFID transponders are linked to assets. The interrogator captures an RFID tag signal containing its own unique ID number, and then wirelessly transmits the data through the 902-928 MHz RF band to one of the 15 receivers around the hospital. WakeMed Gary does not use the collector to transmit the collected data through the wire of the hospital (using the wire data transmission ANSI 709.1 protocol).
By combining the signal strength with secret technology, the interrogator can calculate the position of the object on the floor within a few feet. At the same time, the reader uses the wireless synchronous multiple input multiple output (MIMO) technology, which is a kind of A communication technology that uses multiple antennas to receive data from tags and eliminate multipath interference. Therefore, it can be more accurate when determining a seamless position.
The collector then transmits these unique ID numbers, time and location information when they were read via an Ethernet cable to a server located in WakeMed and managed by WakeMed. But this server can be accessed by RadarFind through a virtual private network (VPN) to provide software updates and other services. RadarFind software company translates these data and displays it in the form of a console, so that hospital employees can type in the name of the item they are searching for, and click on a category to view a map of the hospital that shows the specific location of the item.
Each asset tag provided by RadarFind also has a switch that shows its usage status. When the item has been cleaned and ready to be used, the hospital staff will turn on the switch, which allows the tag to adjust its own signal to indicate that it is available for use, and its status will also be displayed on the server.
WakeMed provided its computer-aided design (CAD) drawings, the digital layout of the building, to RadarFind, which contains each layer, thereby creating a virtual hospital on the server. In the first three months, the hospital used 250 tags to record the server’s work in a limited space. Shelton said that in addition, the hospital plans to expand the system to track other objects and eventually deploy this system on the WakeMed Raleigh campus.
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