Event location analysis system and measurement processing method

1. An event location analysis system, comprising:

a first wireless terminal device configured to communicatively couple to a second wireless terminal device, the first wireless terminal including:

a first measurement sensor,

a first measurement system configured to position a location of the first wireless terminal, the first measurement system having a larger power consumption than the first measurement sensor, and

a first processor configured to

transmit, to the second wireless terminal device, a first notification signal including information indicating a first event, upon detecting the first event on basis of a measurement value of the first measurement sensor,

start the first measurement system upon receiving, from the second wireless terminal device, a second notification signal including information indicating a second event detected by a second measurement sensor of the second wireless terminal device,

activate a measurement operation of the first measurement sensor and a measurement operation of the first measurement system, after the first measurement system is started, and

stop the measurement operation of the first measurement system after a determined time for the first wireless terminal device has elapsed since the start of the first measurement system.

2. The event location analysis system according to claim 1 , wherein the second wireless terminal device includes:

the second measurement sensor,

a second measurement system configured to position a location of the second wireless terminal device, the fourth measurement system having larger power consumption than the third measurement system, and

a second processor configured to

start the second measurement system upon receiving the first notification signal from the first wireless terminal device,

activate a measurement operation of the third measurement sensor and a measurement operation of the second measurement system, after the second measurement system is started,

detect the second event on basis of a measurement value of the second measurement sensor,

stop the measurement operation of the second measurement system after a determined time for the second wireless terminal has elapsed since the start of the second measurement system, and

transmit, after the measurement operation of the second measurement system is stopped, a detection result for the second event and a measurement result of the second measurement system; and

a management device including:

a third processor configured to

receive the detection result and the measurement result from the second wireless terminal device, and

analyze a detection location of the second event on basis of the received detection result and the received measurement result.

3. The event location analysis system according to claim 2 , wherein

the first processor is further configured to

start the first measurement system upon detecting the first event,

activate a measurement operation of the first measurement system, after the first measurement system is started, and

transmit a measurement result of the first measurement system to the management device.

4. The event location analysis system according to claim 2 , wherein the measurement result is obtained before the determined time has elapsed since the activation of the measurement operation of the second measurement system.

5. A measurement processing method, comprising:

executing, by a first wireless terminal device including a first measurement sensor and a first measurement system configured to position a location of the first wireless terminal, the first measurement system having a larger power consumption than the first measurement sensor, a process including,

transmitting, to a second wireless terminal device, a first notification signal including information indicating a first event, upon detecting the event on basis of a measurement value of the first measurement sensor;

starting the first measurement system upon receiving, from the second wireless terminal device, a second notification signal including information indicating a second event detected by a second measurement sensor of the second wireless terminal device;

activating a measurement operation of the first measurement sensor and a measurement operation of the first measurement system, after the first measurement system is started; and

stopping the measurement operation of the first measurement system after a determined time for the first wireless terminal device has elapsed since the start of the first measurement system.

6. A non-transitory computer-readable recording medium having stored therein a program for causing wireless terminal devices to execute a process, the process comprising:

executing, by a first wireless terminal device, among the wireless terminals, including a first measurement sensor and a first measurement system configured to position a location of the first wireless terminal, the first measurement system having a larger power consumption than the first measurement sensor, a process including,

transmitting, to a second wireless terminal device among the wireless terminal devices, a first notification signal including information indicating a first event, upon detecting the event on basis of a measurement value of the first measurement sensor;

starting the first measurement system upon receiving, from the second wireless terminal device, a second notification signal including information indicating a second event detected by a second measurement sensor of the second wireless terminal device;

activating a measurement operation of the first measurement sensor and a measurement operation of the first measurement system, after the first measurement system is started; and

stopping the measurement operation of the first measurement system after a determined time for the first wireless terminal device has elapsed since the start of the first measurement system.