Monitoring system for radio communication apparatus

Claim 2

A monitoring system for a radio communication apparatus including a base station and a plurality of portable units for monitoring a state of each of said portable units through said base station, comprising: means disposed in said base station for transmitting a first asking signal to each of said portable units for a predetermined short period; means disposed in each of said portable station for replying a response signal in response to said first asking signal only when a state of each of said portable units becomes abnormal; means disposed in said base station for transmitting a second asking signal to each of said portable units in response to said response signal and for a predetermined long period; and means disposed in each of said portable units for transmitting a state signal to said base station in response to said second asking signal, said state signal indicating an operation state of each of said portable units.

Claim 3

A monitoring system for a radio communication apparatus including a base station and a plurality of portable units for monitoring a state of each of said portable units through said base station, comprising: means disposed in said base station for transmitting a first asking signal to each of said portable units for a first predetermined period; means disposed in each of said portable station for replying a response signal in response to said first asking signal only when a state of each of said portable units is changed in abnormality; means disposed in said base station for transmitting a second asking signal to each of said portable units in response to said response signal; means disposed in said base station for transmitting a third asking signal to each of said portable units for a second predetermined period, said second predetermined period being longer than said first predetermined period; and means disposed in each of said portable units for transmitting a state signal to said base station in response to said second or third asking signal, said state signal indicating an operation state of each of said portable units.

Claim 4

A monitoring system for a radio communication apparatus including a base station and a plurality of portable units for monitoring a state of each of said portable units through said base station, comprising: means disposed in said base station for transmitting a first asking signal to each of said portable units for a first predetermined period; means disposed in each of said portable station for replying a response signal in response to said first asking signal only when a state of each of said portable units is changed in abnormality; means disposed in said base station for transmitting a second asking signal to each of said portable units in response to said response signal; means disposed in said base station for transmitting a third asking signal to each of said portable units for a second predetermined period, said second predetermined period being longer than said first predetermined period; and means disposed in each of said portable units for transmitting a state signal to said base station in response to said second or third asking signal, said state signal indicating an operation state of each of said portable units.

Claim 5

A monitoring method for a radio communication apparatus including a base station and a plurality of portable units, comprising: transmitting a first requiring signal from said base station to each of said portable units for a first predetermined cycle period; replying a first response signal from each of said portable units to said base station only when each of said portable units has a change of an operation state; transmitting a second requiring signal from said base station to each of said portable units when said base station receives said first response signal from each of said portable units; transmitting a third requiring signal from said base station to each of said portable units for a second predetermined cycle period, said second predetermined cycle period being longer than said first predetermined cycle period; and replying a second response signal from each of said portable units to said base station in response to said second or third requiring signal, said second response signal including information of the operation state in each of said portable units.

Claim 6

A monitoring method for a radio communication apparatus including a base station and a plurality of portable units, comprising: transmitting a first requiring signal from said base station to each of said portable units for a first predetermined cycle period; replying a first response signal from each of said portable units to said base station only when each of said portable units has a change of an operation state; transmitting a second requiring signal from said base station to each of said portable units when said base station receives said first response signal from each of said portable units; transmitting a third requiring signal from said base station to each of said portable units for a second predetermined cycle period, said second predetermined cycle period being longer than said first predetermined cycle period; and replying a second response signal from each of said portable units to said base station in response to said second or third requiring signal, said second response signal including information of the operation state in each of said portable units.

Claim 7

A radio communication system including one base station and portable units existing around said base station, for monitoring a state of each of said portable units by said base station, comprising: means belonging to said base station for inquiring said units sequentially of presence of a change in their operation states for a short period; means belonging to each of said portable units for storing presence of the change in the operation state thereof; means belonging to each of said portable units for informing said base station of the change in the operation state thereof; means belonging to said base station for acknowledging the presence of the change in the operation state of each of said portable unit; means belonging to said base station for requiring information of the operation state to each of said portable units in response to the acknowledgement of the operation state change; means belonging to each of said portable units for transmitting the information of the operation state thereof to said base station upon reception of the requirement; means belonging to said base station for requiring information of the operation state to each of said portable units thereof sequentially for a long period; and means belonging to said each of said portable units for transmitting the information of the operation state thereof to said base station upon reception of the long period requirement.

Claim 8

A radio communication system including one base station and portable units existing around said base station, for monitoring a state of each of said portable units by said base station, comprising: means belonging to said base station for inquiring said units sequentially of presence of a change in their operation states for a short period; means belonging to each of said portable units for storing presence of the change in the operation state thereof; means belonging to each of said portable units for informing said base station of the change in the operation state thereof; means belonging to said base station for acknowledging the presence of the change in the operation state of each of said portable unit; means belonging to said base station for requiring information of the operation state to each of said portable units in response to the acknowledgement of the operation state change; means belonging to each of said portable units for transmitting the information of the operation state thereof to said base station upon reception of the requirement; means belonging to said base station for requiring information of the operation state to each of said portable units thereof sequentially for a long period; and means belonging to said each of said portable units for transmitting the information of the operation state thereof to said base station upon reception of the long period requirement.