JP4012624B2 - Terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal device that compares the latest position information received from a GPS receiver, which is a position information recognition function, with current position information, and calls a center when the comparison data changes.
[0002]
[Prior art]
A conventional automatic position information notification system is disclosed in Japanese Patent Laid-Open No. 8-180286. The mobile terminal device receives the position information and time information of the artificial satellite from each of a plurality of GPS satellites, calculates the longitude, latitude, altitude, etc. of the reception point, and converts the calculated current position information into a radio signal based on the PHS protocol And sent 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 an emergency call is made, the supervisor of the monitoring center checks where the sender is from the current location information and arranges emergency services.
[0003]
[Problems to be solved by the invention]
As described above, in the conventional automatic position information notification system, the mobile terminal device receives the position information and time information of each satellite from a plurality of GPS satellites, calculates the longitude, latitude, altitude, etc. of the reception point, and calculates Since the current position information is converted into a radio signal based on the PHS protocol and transmitted to the monitoring center at regular intervals, unnecessary data may be transmitted.
[0004]
[Means for Solving the Problems]
The present invention is to solve these problems, and receives position information and time information of each GPS satellite from a plurality of GPS satellites to calculate current position information such as longitude, latitude and altitude of the receiving point. In the mobile anti-theft mobile terminal device used in the automatic location information notification system that temporarily stores the calculated current location information in the memory, it is determined whether or not the measurement cycle is based on a timer, and the measurement cycle is reached The latest current position information received from the GPS satellite is calculated, and the calculated latest current position information is compared with the current position information stored in the memory. when it is determined that, the process returns to the determination of whether the measurement period, both not match, when the degree of mismatch is determined not within the error range, public communication the latest current position information Stored in the memory and transmitted to the management center via a degree of mismatch when determined to be within the error range, and storing, in said memory without transmitting the latest current position information An automobile antitheft portable terminal device used in an automatic position information notification system is provided.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described 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. 2 is a block diagram of the apparatus used in the automatic position information notification system according to an embodiment of the present invention. 3 is a flowchart for explaining the operation of the portable terminal device used in the automatic position information notification system according to the embodiment of the present invention.
[0006]
In FIG. 1, 1 is an artificial satellite, 2 is an apparatus for receiving radio waves from the artificial satellite 1, 3 is a radio base station, 4 is a public communication network, 5 is a management center, 6 is a home, 7 is a mobile terminal, 8 Is a radio base station. The operation will be described with reference to FIG. The device 2 receives position information and time information transmitted from the artificial satellite 1 and calculates the longitude, latitude, altitude, etc. of the reception point, and the calculated current position information is transmitted to the management center 5 or wirelessly through the wireless base station 3. The data is transferred to a mobile terminal 7 or a telephone set at home 6 via the base station 8. At the same time, the data is transferred to the mobile terminal 7 and the telephone set in the home 6. At the same time, the mobile terminal 7 and the telephone set installed in the home 6 and the management center 5 can talk to each other via the public communication network 4.
[0007]
With reference 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, 14 is signal processing, 15 is position data processing, 11 is an antenna for transmitting and receiving with the radio base station 3, and 16 is Antenna switching, 17 receiving unit, 18 transmitting unit, 19 wireless control, 20 memory, 21 control circuit, 24 input unit, 23 microphone, 22 speaker, 25 for driving the apparatus 2 It is an oscillation part.
[0008]
The operation will be described with reference to FIGS.
The device 2 starts a timer (S1). Based on this timer, a period of a constant time interval is calculated to determine whether it is a measurement period (S2), and if it is not a measurement period, loop processing is performed until the measurement period is reached. When the measurement period comes, position information reception processing is performed in order to receive radio waves from the artificial satellite 1 (S3). Then, it is determined whether or not the position measured last time is the same as the latest position information (S4). If they are the same, loop processing is performed until they do not match. Further, even if there is a mismatch, it is determined whether or not the level of the mismatch is within the error range (S5), and if it is not within the error range, position information and the like are transmitted to the management center 5 shown in FIG. 1 (S6, S7). Finally, the latest location information is stored in the memory to update the memory contents (S8).
[0009]
As this application, there is a merit in antitheft by mounting the function of the PHS terminal in automobiles.
[0010]
【The invention's effect】
As described above, the present invention receives the position information and time information of each artificial satellite from a plurality of GPS satellites, and stores the latest position information obtained by calculating the longitude, latitude, altitude, etc. of the reception point in the memory. By comparing the current position information and changing the comparison data, an alarm is sounded and the center is called, so that the latest information which 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 an automatic position information notification system according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating the operation of the mobile terminal device used in the automatic position information notification system according to an embodiment of the present invention.
[Explanation of symbols]
12 GPS reception antenna 13 reception unit 14 signal processing 15 position data processing 11 antenna 16 antenna switching 17 reception unit 18 transmission unit 19 wireless control 20 memory 21 control circuit 22 speaker 23 microphone 24 input unit 25 oscillation unit

Claims (1)

Receiving position information and time information of each GPS satellite from a plurality of GPS satellites, calculating current position information such as longitude, latitude, altitude of the reception point, and temporarily storing the calculated current position information in a memory; In a portable terminal device for preventing car theft used in an automatic location information notification system,
It is determined whether or not it is a measurement cycle based on a timer. When the measurement cycle is reached, the latest current position information received from the GPS satellite is calculated, and the calculated latest current position information and stored in the memory. When the current position information is compared and it is determined that both are in the same position, it returns to the determination of whether or not it is the above measurement cycle, the two do not match, and the degree of mismatch is not within the error range When it is determined that the latest current position information is transmitted to the management center via the public communication network and stored in the memory, and when it is determined that the degree of mismatch is within the error range, the latest current position information is A mobile terminal device for preventing vehicle theft used in an automatic location information notification system, wherein the mobile location device is stored in the memory without being transmitted.

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