JPH11339170A - Automatic position information notification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit the latest necessary/effective information in real time by receiving position information and time information of an artificial satellite from a GPS satellite, comparing the latest position information with the current position information stored in a memory and calling a center by rumbling an alarm when there is a change. SOLUTION: This system 2 receives position information and time information which are transmitted from an artificial satellite 1 and transfers them to a mobile terminal 7 or a telephone set installed at user's house 6 via a management center 5 or a radio base station 8 through a radio base station 3. At the same time, the terminal 7, the telephone set installed at the house 6 and the center 5 can mutually communicate through a public communication network 4. In such a case, the device 2 starts a timer and performs position information receiving processing to receive radio waves from the satellite 1 when a measurement cycle comes. And, it judges if the position at the time when the preceding measurement was performed, is the same as the latest position information and transmits position information, etc., to the center 5 if they are not within an error range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic position information recognizing function which compares the latest position information received from a GPS receiver with the current position information and calls a center when the comparison data changes. It relates to a position information notification system.

[0002]

2. Description of the Related Art A conventional automatic position information notification system is disclosed in Japanese Patent Application Laid-Open No. 8-180286. The mobile terminal device receives the position information and time information of the artificial satellites from a plurality of GPS satellites, calculates the longitude, latitude, altitude, etc. of the receiving point, and converts the calculated current position information into a radio signal based on the PHS protocol. Then, the data is transmitted to the monitoring center at regular intervals. Alternatively, when the emergency information button is operated, the current position information is transmitted to the monitoring center. When there is an emergency call, the monitor of the monitoring center checks where the caller is from the current location information and arranges for emergency activities.

[0003]

As described above, in the conventional automatic position information notifying system, the portable terminal device receives the position information and time information of each satellite from a plurality of GPS satellites, Calculate latitude, altitude, etc., convert the calculated current position information into a radio signal based on the PHS protocol, and transmit unnecessary data to the monitoring center at regular intervals. was there.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and receives position information and time information of each artificial satellite from a plurality of GPS satellites, and receives the longitude, latitude, and latitude of a receiving point. An automatic position information notification system that calculates altitude and the like, temporarily stores the calculated current position information in a memory, converts the stored current position information into a wireless signal based on the protocol of the PHS terminal, and transmits the wireless signal to a monitoring center. And an automatic position information notifying system that compares the latest position information received from a GPS satellite with the current position information stored in the memory, sounds an alarm and calls a center when the comparison data changes. I do.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an automatic position information notification system according to an embodiment of the present invention.
FIG. 3 is a block diagram of the apparatus used in the automatic location information notification system according to one embodiment of the present invention. FIG. 3 illustrates the operation of the portable terminal device used in the automatic location information notification system according to one embodiment of the invention. It is a flowchart explained.

In FIG. 1, 1 is an artificial satellite, 2 is a device for receiving radio waves from the artificial satellite 1, 3 is a radio base station,
Is a public communication network, 5 is a management center, 6 is a home, 7 is a mobile terminal, and 8 is a wireless base station. The operation will be described with reference to FIG. The device 2 receives the position information and the time information transmitted from the artificial satellite 1 and installs the information at the mobile terminal 7 or the home 6 via the management center 5 or the wireless base station 8 through the wireless base station 3. Transfer to the phone. At the same time, the mobile terminal 7 and the telephone set in the home 6 and the management center 5 can communicate with each other via the public communication network 4.

Referring to FIG. 2, the configuration of the apparatus 2 will be described. 12 is a GPS receiving antenna, 13 is a receiving unit for processing received data received by the GPS receiving antenna, 1
4 is signal processing, 15 is position data processing, 11 is an antenna for transmitting and receiving to and from the wireless base station 3, 16 is antenna switching, 17 is a receiving unit, 18 is a transmitting unit, 19 is wireless control, 2
0 is a memory, 21 is a control circuit, 24 is an input unit, 23 is a microphone, 22 is a speaker, and 25 is an oscillating unit for driving this device 2.

The operation will be described with reference to FIGS. The device 2 starts a timer (S1). Based on this timer, a cycle of a certain time interval is calculated and it is determined whether or not it is a measurement cycle (S2). If it is not a measurement cycle, loop processing is performed until the measurement cycle. When the measurement period is reached, a position information receiving process is performed to receive a radio wave from the artificial satellite 1 (S3). Then, it is determined whether or not the position measured at the last time and the latest position information are the same (S4), and if they are the same, loop processing is performed until they do not match. Further, even if it is a mismatch, it is determined whether or not the degree of the mismatch is within an error range (S5), and if not, the position information and the like are transmitted to the management center 5 shown in FIG. 1 (S6, S7). Finally, the contents of the memory are updated by storing the latest position information in the memory (S8).

As an example of this application, there is also an advantage in preventing theft by mounting the function of a PHS terminal in a car or a vending machine.

[0010]

As described above, the present invention provides a plurality of GPS
The position information and time information of each artificial satellite are received from the satellite, and the longitude, latitude, altitude, etc. of the receiving point are calculated and the latest position information is compared with the current position information stored in the memory, and the comparison data is obtained. When a change occurs, the alarm is sounded and the center is called, so that the latest information that is necessary and wasteful can be transmitted in real time.

[Brief description of the drawings]

FIG. 1 is a block diagram of an automatic position information notification system according to an embodiment of the present invention.

FIG. 2 is a block diagram of the apparatus used in the automatic position information notification system according to one embodiment of the present invention.

FIG. 3 is a flowchart illustrating the operation of the portable terminal device used in the automatic position information notification system according to one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 12 GPS receiving antenna 13 Receiving unit 14 Signal processing 15 Position data processing 11 Antenna 16 Antenna switching 17 Receiving unit 18 Transmitting unit 19 Radio control 20 Memory 21 Control circuit 22 Speaker 23 Microphone 24 Input unit 25 Oscillating unit

Claims (2)

[Claims] 1. Receiving position information and time information of each satellite from a plurality of GPS satellites,
An automatic position information notification system that calculates altitude and the like, temporarily stores the calculated current position information in a memory, converts the stored current position information into a wireless signal based on the protocol of the PHS terminal, and transmits the wireless signal to a monitoring center. In, GPS
An automatic position information notification system which compares the latest position information received from a satellite with the current position information stored in the memory, and sounds an alarm and calls a center when the comparison data changes. . 2. An automatic location information notification system wherein the function of the PHS terminal is mounted on a car or a vending machine to prevent theft of the car or the vending machine.