CS 2310 Project— Just-in-Time Medical Application

IC System Design

I. IC System for Initialization

1.1 New Patient Initialization

n A new patient will provide data about himself/herself

n This data will be stored in the network’s database.

n The hospital that the patient has selected as his/her primary hospital will be notified of its new patient.

n The new patient’s data will indicate that the user is either capable of taking care of himself or not.

q If the patient cannot take care of himself, a new non-able patient index cell is created by the system.

q Otherwise, a new able patient index cell is created by the system.

1.2 New Hospital Initialization

n A new hospital will provide information about itself to be stored on the network.

n A new Hospital index cell is created

n Based on the location of the hospital, nearby patients will be notified in order to provide them the opportunity to change their primary hospital (this would be a separate scenario for changing primary hospital).

1.3 New Expert Initialization

n A new expert will provide his/her credentials to the network, as well as the hospital at which he/she works.

n A new Expert index cell is created

n Patients who may be interested in such a specialist will be notified so that they may switch their primary hospital.

II. IC System for Able Patient

n In this able-patient scenario, an able patient can make alert request by himself/herself.

n Sensor Emergency Alert cell receives messages from both the patient (Patient Emergency Alert) and the Sensor and/or Camera, and it forwards the information to Hospital Response cell.

n Then Nurse is informed and the nurse can interact with the Able Patient, making queries and instructing the patient

n The patient follows the nurse’s instructions, answers questions and makes queries.

n If the nurse is not sure about what to do, she can ask for advice from the Doctor. (the same as “Expert”)

III. IC System for Non-Able Patient

n In this non-able patient scenario, a non-able patient cannot make alert request by himself/herself, so alert is initiated by Sensor and/or Camera.

n Sensor Emergency Alert cell forwards the alert information to Hospital Response cell when some parameter threshold is reached.

n Both the Doctor and Nurse will be informed.

n Nurse will be dispatched to assist the non-able patient if necessary. When a nurse receives the dispatch task request, he/she should make acknowledgement.

n Nurse and doctor will be informed of the current conditions of the non-able patient sent by sensor and camera, and nurse can communicate with doctor.

IV. Timing Constraints on Messages

n In all of the time-critical messages, Tc is the time parameter. Once such a message arrives at the target IC, a checking for the time will be done.

n Let current system clock be Ts.

n If Ts < Tc then the IC is not triggered.

n If Tc+Tnormal >= Ts >= Tc then the output message will carry a new time parameter Tc'(Tc’ = Tc+Tnormal.).

n If Tc+Talarm >= Ts > Tc+Tnormal, i.e., Tc is within an alarm threshold Talarm, then an alarm message is sent to request immediate response.

n For different ICs, the Tnormal and Talarm can be different, so that we can flexibly set reasonable thresholds to best meet our application.

Specifically, the timing constraints in the messages for the above three IC Systems:

n For the initializations, messages are not time-critical, so they do not carry any time parameters.

n For the able patient IC system, almost all messages are time-critical, because this is a just-in-time application meaning requests should be resolved within limited timing budget. A special case is msg1 and msg2 as depicted in the figure: Before alert is detected, the sensor and/or camera just periodically send messages which have no time parameters (here I just simply put down msg1: patient’s image and msg2: patient’s condition). However, once it’s known that an alert exists in the network, the messages msg1 and msg2 are time-critical, because they have to be delivered in time to ensure effective interactions between nurse& patient(or between doctor& nurse). Thus msg1 and msg2 should carry time parameters, in the form of msg1 (Tc): patient’s image and msg2 (Tc): patient’s condition.

n For the non-able patient IC system, the timing constraints work in the same way as the able-patient scenario.