초록 ▼

A data collection method of the present invention uses measuring terminals, each of measuring terminals can obtain measurement data from a sensor and wirelessly transmit the measurement data, and a collection terminal for receiving the measurement data from the measuring terminals, each measuring te

A data collection method of the present invention uses measuring terminals, each of measuring terminals can obtain measurement data from a sensor and wirelessly transmit the measurement data, and a collection terminal for receiving the measurement data from the measuring terminals, each measuring terminal having a memory that stores, as its own identification information, one of a limited number of sets of identification information whose order can be defined. The data collection method comprises: an inquiring step in which the collection terminal wirelessly transmits a message for inquiring about identification information; a first responding step in which each measuring terminal, on receiving the message, wirelessly transmits its own identification information when, after the message has ended, a turn for sending its own identification information is reached; a first identifying step in which the collection terminal stores the sets of identification information received in reply in the order of the sets of identification information; and a collecting step in which the collection terminal wirelessly communicates individually with the measuring terminals that have the stored sets of identification information and collects the measurement data from the measuring terminals. By the collection method, data can be automatically collected from the measuring terminals.

대표청구항 ▼

1. A data collection method that uses measuring terminals, each of the measuring terminals obtains measurement data from a sensor and wirelessly transmits the measurement data, and a collection terminal for receiving the measurement data from the measuring terminals,each of the measuring terminals h

1. A data collection method that uses measuring terminals, each of the measuring terminals obtains measurement data from a sensor and wirelessly transmits the measurement data, and a collection terminal for receiving the measurement data from the measuring terminals,each of the measuring terminals having a memory for storing one of a limited number of sets of identification information, whose order is definable, as own identification information,the data collection method comprising:(a) the collection terminal wirelessly transmits a message for inquiring about own identification information;(b) at least one of the measuring terminals, after receiving the message, wirelessly transmits the own identification information after the message has ended, during a turn for sending the own identification information;(c) the collection terminal stores the own identification information in the order of identification information; and(d) the collection terminal wirelessly communicates individually with the measuring terminals with the own identification information stored and collects the measurement data from the measuring terminals.2. The data collection method according to claim 1,wherein each own identification information includes first identification information for defining order and second identification information for identifying a group,in step (a), the message including the second identification information is transmitted, andin step (b), the measuring terminals whose own identification information includes the second identification information included in the message reply to the message.3. The data collection method according to claim 1,wherein in step (a), a same message is transmitted a plurality of times together with a number of repetitions.4. The data collection method according to claim 1,wherein in step (b), the turn for transmitting the own identification information is counted using a normal time for transmitting one set of identification information, the normal time being a total of a time needed to transmit the one set of identification information plus spare time.5. The data collection method according to claim 1, further comprising:(e) before step (b), every measuring terminal wirelessly transmits the own identification information simultaneously following an end of the message; and(f) when a set of identification information is identified in step (e), the set of identification information is stored and step (c) is skipped.6. A measuring terminal comprising:a circuit for obtaining measurement data from a sensor;a wireless apparatus for transmitting the measurement data;a memory for storing one of sets of identification information, whose order are definable, as own identification information; andwherein the wireless apparatus is adapted to transmit the own identification information when a message inquiring about identification information has been received via the wireless apparatus and a turn for transmitting the own identification information has been reached following an end of the message.7. The A measuring terminal according to claim 6,wherein the wireless apparatus is adapted to transmit the own identification information a predetermined time after the end of the message and before the first responding means replies.8. The measuring terminal according to claim 6, further comprising an optical communication means for receiving data for setting conditions for transmitting and receiving via the wireless apparatus.9. A collection terminal, comprising:a wireless apparatus for receiving measurement data from measuring terminals for obtaining the measurement data from sensors;the wireless apparatus is adapted to transmit to the measuring terminals a message that inquires about identification information; anda memory that stores sets of identification information received via the wireless apparatus in an order of the sets of identification information after an end of the message,wherein the wireless apparatus is adapted to communicate with the measuring terminals individually with the sets of identification information stored and collects the measurement data from the measuring terminals.10. The collection terminal according to claim 9,wherein the wireless apparatus is adapted to transmit a same message a plurality of times together with a number of repetitions.11. The collection terminal according to claim 9,further comprising a second identifying means for receiving via the wireless apparatus, following the end of the message, the sets of identification information that are simultaneously transmitted from every measuring terminal and, when a set of identification information is identified, storing the set of identification information and skipping an operation of the first identifying means.12. A data collection system including measuring terminals, each measuring terminal obtains measurement data from a sensor and wirelessly transmits the measurement data, and a collection terminal for receiving the measurement data from the measuring terminals,the measuring terminal comprising:a measuring terminal wireless apparatus for wirelessly transmitting the measurement data;a memory for storing one of sets of identification information, whose order is definable, as own identification information; andwherein the measuring terminal wireless apparatus is adapted to wirelessly transmit the own identification information when a message inquiring about identification information has been wirelessly received and a turn for sending the own identification information of the measuring terminal has been reached following an end of the message, andthe collection terminal comprising:a collection terminal wireless apparatus for receiving the measurement data from the measuring terminals wirelessly and for transmitting, wirelessly to the measuring terminals, the message that inquires about identification information; anda memory for storing the sets of identification information wirelessly received in the order of the sets of identification information following the end of the message,wherein the collection terminal wireless apparatus is adapted to communicate with the measuring terminals individually with the sets of identification information sets stored and collects the measurement data from the measuring terminals.13. A computer readable medium having a program that controls a measuring terminal for obtaining measurement data from a sensor and transmitting the measurement data via a wireless apparatus,wherein one of a limited number of sets of identification information, whose order is definable, is stored in a memory as own identification information,the program comprising an instruction that executes a step of transmitting, when a message inquiring about identification information has been received via the wireless apparatus, the own identification information via the wireless apparatus when, after the message has ended, a turn for sending the own identification information is reached.14. The program according to claim 13,wherein the measuring terminal includes optical communication means and the program further comprises an instruction that executes a step of setting the own identification information using the optical communication means.15. A computer readable medium having a program that controls a collection terminal for receiving measurement data via a wireless apparatus from measuring terminals for obtaining the measurement data from sensors,the program comprising instructions for executing a method comprising:transmitting, via the wireless apparatus to the measuring terminals, a message that inquires about identification information;storing, following an end of the message, sets of identification information received via the wireless apparatus in an order of the sets of identification information; andcommunicating via the wireless apparatus with the measuring terminals individually with the sets of identification information stored and collecting the measurement data from the measuring terminals.