Condition correction unit

A method for correcting a body condition of a seated person seated in a seat using a condition correction unit, wherein the condition correction unit comprises an operator configured to operate to correct a body condition of the seated person, a control circuit configured to measure a current value of an indicator for determining the body condition and to execute processing to correct the body condition by controlling the operator, a memory configured to store correction plans showing contents of correction of the body condition, a heater configured to warm a predetermined part of the body of the seated person, a bulging pressure sensor configured to measure a bulging pressure of an air bag disposed in a seat back of the seat, and a pressure sensor provided on the air bag and configured to measure a pressure applied to the seat back,

• the method comprising:
• receiving, by the control circuit, one of controlling modes designated among the controlling modes, after measuring the current value of the indicator by the control circuit, wherein the controlling modes are modes to be performed by the control circuit and include an ideal correction mode that is a mode to control the operator to correct a seated posture of the seated person to an ideal posture, wherein the ideal posture is a preselected posture as an ultimate goal for the seated person, and a comfortable correction mode that is a mode to control the operator to allow the seated person to keep a current seated posture for stabilizing the current seated posture of the seated person as it is, wherein the indicator includes the bulging pressure of the air bag measured by the bulging pressure sensor and the pressure applied to the seat back measured by the pressure sensor;
• determining, by the control circuit, the current seated posture of the seated person based on the measured current value of the bulging pressure of the air bag and the measured current value of the pressure applied to the seat back;
• when a determination result of the current seated posture of the seated person determined based on the measured current value of the bulging pressure of the air bag and the measured current value of the pressure applied to the seat back is not the ideal posture, allowing, by the control circuit, designation of one of the ideal correction mode and the comfortable correction mode by the seated person;
• reading, by the control circuit, a correction plan from the memory suitable for the current seated posture of the seated person;
• executing, by the control circuit, the processing to correct the body condition according to the contents of the correction shown by the read correction plan and adjusting the bulging pressure of the air bag in accordance with the determination result of the current seated posture of the seated person;
• and
• upon receipt of a signal indicating that the seated person is seated in the seat or upon a predetermined operation performed after the seated person is seated in the seat, and in response to designation of the ideal correction mode, controlling, by the control circuit, the heater to warm the predetermined part of the body of the seated person before executing the processing to correct the body condition.