| 摘要 |
<p>PURPOSE:To realize data collection without omission of data indicating calling condition even under an overcrowding condition, by installing a storage circuit composed of plural blocks which discriminates writing in a specified address area by monitoring address information and stores data. CONSTITUTION:A channel network 2 which connects subscribers 1 with each other is composed of a main storage device 4 which stores programs and data to be used by a CPU3 in the course of call processing, data channel device 5, and input-output device 6. A data collecting device 7 composed of a measuring device 9, processor 10, communication control equipment 11, and input-output device 12, monitors address information sent out from the CPU3 and collects data to be stored in a specified address area. Since the data collecting device 7 can simultaneously hold data indicating calling conditions up to (n) sets in each block of a buffer memory in the measuring device 9, the processor 10 can successively extracts and processes data stored in each block and no apprehensions of data omission is expected even under an overcrowding condition.</p> |
