JPH08292249A - Global positioning system - Google Patents

Abstract

PURPOSE: To transmit sure data without requiring a connection cable, by providing a GPS sensor and an operation device with infrared communication units. CONSTITUTION: A GPS requirement command sent from an infrared communication unit 5 of an operation device 2 is detected by infrared rays at a receiving/ controlling circuit 11 of a unit 5 attached to a GPS sensor 1, converted to an electric signal and sent to a GPS receiving unit 4 via a RS 232C driver 9. In accordance with the GPS requirement command, the unit 4 calculates data such as a latitude, a longitude, a time, an altitude and the like from a GPS signal received by an antenna 3 and sends the calculated data to the unit 5 via the driver 9. The unit 5 converts the data at a transmitting/controlling circuit 10 to an infrared signal and emits and sends as infrared rays to the device 2. The unit 5 of the device 2 detects the infrared rays and operates with the use of the transmitted data. Accordingly, correct data can be transmitted without requiring a connection cable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to GP from GPS satellites.
The present invention relates to a global positioning system that calculates the position of a moving body by receiving an S signal.

[0002]

2. Description of the Related Art Recently, as a navigation system,
A global positioning system (hereinafter, GPS) that receives the radio waves transmitted from geostationary satellites to detect the position of the moving body.
The position measuring device using the () is becoming popular.

This GPS is generally useful for measuring and confirming the current position and moving speed of a moving body such as a person, a ship, an aircraft, and an automobile.

The GPS mounted on the vehicle is, for example, a GPS that receives radio waves from GPS satellites, as shown in FIG.
A GPS including a GPS receiving unit 4 for calculating data obtained from radio waves received by the antenna 1 and the GPS antenna 1.
The sensor 1 and the arithmetic processing unit 2 that calculates the GPS data sent from the GPS sensor 1 according to the purpose of the user.

The GPS sensor 1 is a component G
The PS antenna 1 receives radio waves transmitted from three or more GPS satellites located in the sky to read GPS data, and further, the GPS connected to the GPS antenna 1
The reception unit 4 transfers the position data, time data, and satellite data of the GPS data sent from the plurality of GPS satellites to the arithmetic processing unit 2.

Then, the arithmetic processing unit 2 using a personal computer or a data terminal machine determines the distance of the vehicle from the GPS data composed of position data, time data and satellite data according to the purpose of the user. Data, altitude data, and current vehicle position are calculated. Further, the moving speed and moving distance of the vehicle can be calculated by adding time data to the above data.

In the GPS having the above configuration, the GPS sensor 1 and the arithmetic processing unit 2 are independently configured and are connected to each other by the connecting cable 6 to construct one system. However, since the GPS sensor 1 is installed on the front or rear dashboard of the vehicle in order to efficiently receive the radio waves transmitted from the GPS satellites, the connection cable 6 is installed inside the vehicle together with the GPS sensor 1. It is routed inside the vehicle to connect to the processing unit 2.

When the connection cable 6 is routed inside the vehicle as described above, external noise is apt to be transferred to the connection cable 6, and when the data is transmitted to the arithmetic processing unit 2, the external noise may cause the data to be rewritten and malfunction. It was

Further, since the connection cable 6 is routed inside the vehicle, there is a problem such that when a person gets in or out of the vehicle, the connection cable 6 is caught or the wire is broken.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and does not require a connecting cable for connecting a GPS sensor forming a GPS and an arithmetic processing unit, and can perform reliable arithmetic processing of data. It is an object to provide a GPS that can be transmitted to a device.

[0011]

A global positioning system according to claim 1 of the present invention comprises a receiving antenna 3 for receiving a GPS signal transmitted from a GPS satellite and the G antenna.
GPS receiving unit 4 and GPS for processing PS signals
It is characterized by comprising a GPS sensor 1 including an infrared communication unit 5 that communicates GPS data calculated by the receiving unit 4, and an arithmetic processing unit 2 including an infrared communication unit 5 that communicates with the GPS sensor 1.

[0012]

According to the global positioning system of the present invention, a receiving antenna for receiving GPS signals transmitted from GPS satellites and a GP for processing the GPS signals are provided.
The S reception unit, an infrared communication unit that communicates GPS data calculated by the GPS reception unit to the S reception unit, and an arithmetic processing unit that includes an infrared communication unit that communicates with the GPS sensor, so that the GPS can be used without using a connection cable. Data can be transmitted by connecting the sensor to an arithmetic processing unit such as a personal computer.

The present invention will be described in detail below.
The GPS sensor that constitutes the global positioning system of the present invention integrally includes a reception antenna and a GPS reception unit. This reception antenna is preferable because, for example, a microstrip antenna is small, lightweight, and high-performance. used. The receiving antenna receives GPS data sent from a GPS satellite. Further, the GPS data is converted into position data, time data and satellite data by the GPS receiving unit.

The position data is latitude, longitude, and altitude, and the time data is world standard time.
Furthermore, as the satellite data, almanac and ephemeris are used.

The position data, the time data, and the satellite data converted by the GPS receiving unit are transmitted to an arithmetic processing unit such as a personal computer or a data terminal via an infrared communication unit.

The arithmetic processing unit can set various data, and as the initial data, various data can be input according to the purpose of use of the vehicle equipped with the GPS sensor. For example, time, position, distance, speed, altitude, area, etc. can be input. There is no problem whether this data is input by one or a plurality.

The above data is compared and judged by the arithmetic processing unit with the state of the moving body as set values such as time limit, continuous movement time, limit distance, limit speed, limit altitude, limit direction, and limit area. This comparison and determination method is performed by a program incorporated in the arithmetic processing unit, and can be changed or registered according to the purpose of use of the user.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1 or 2.

FIG. 1 is a block diagram of a GPS according to an embodiment of the present invention, and FIG. 2 is a block diagram of a GPS sensor.

The GPS according to the present invention is used by being mounted on a moving body. As shown in FIG.
It is composed of a personal computer which is the arithmetic processing device 2 and a power supply device 8.

The GPS sensor 1 is connected to a power supply device 8 through a power cable 7, and when mounted on a vehicle for use, a power socket 7a attached to the power cable 7 is connected to a cigarette lighter socket in the vehicle. Power is supplied by connecting to 8a.

Therefore, the GPS sensor 1 of this embodiment
Is installed on the front dashboard inside the vehicle.

As shown in FIG. 2, the GPS sensor 1 is provided with a GPS receiving unit 4 and performs signal processing of GPS signals sent from a plurality of GPS satellites received by the receiving antenna 3 to obtain the longitude of the receiving position. Calculate latitude, altitude, and time data.

The calculated data is transmitted to the external output driver 9 such as RS232C and further transmitted to the infrared communication unit 5.

The infrared communication unit 5 includes a transmission control circuit 10 for converting the data of the electric signal transmitted from the external output driver 9 into an infrared signal and transmitting the infrared signal.
Further, it is provided with a reception control circuit 11 which receives an infrared signal transmitted from another and converts it into an electric signal. Therefore, the GPS sensor 1 can realize bidirectional communication via the infrared communication unit 5.

Further, the personal computer 2a of the present embodiment, which is the arithmetic processing unit 2, is of a small size and is used for carrying, and has an infrared communication unit similar to the GPS sensor 1 at an external input / output terminal. 5 are installed.

With this infrared communication unit 5, it is possible to send an infrared signal to the outside according to an instruction from the personal computer 2a, or to receive the infrared signal sent from the outside and take it in the personal computer 2a.

Therefore, in the GPS of this embodiment, when the GPS request command is transmitted from the infrared communication unit 5 of the personal computer 2a to the GPS sensor 1, first, the reception control circuit of the infrared communication unit 5 attached to the GPS sensor 1 is sent. At 11, the GPS request command is received by infrared rays. The received GPS request command is converted into an electric signal by the reception control circuit 11, and RS232
It is sent to the GPS receiving unit 4 via the C driver 9a. Then, the GPS receiving unit 4 calculates data such as longitude, latitude, altitude, and time according to the GPS request command.

The calculated transmission data is sent to the infrared communication unit 5 via the RS232C driver 9a.
Then, the transmission control circuit 10 converts the electric signal into an infrared signal, emits it as infrared light, and transmits it to the personal computer 2a.

The transmission data transmitted by infrared rays from the GPS sensor 1 is received by the infrared communication unit 5 of the personal computer 2a, taken in, and further calculated by using this transmission data, so that the moving body It is possible to calculate the moving speed and the moving distance. Also,
It is also possible to display the position data of the moving body by superimposing it on the stored map data.

The GPS of the present invention is not limited to the one described in the above embodiment, but the arithmetic processing unit 2 can use all the results calculated by using GPS satellites. Further, although the infrared communication unit 5 has been described as an example attached to the main body of the GPS sensor 1 and the arithmetic processing unit 2, the infrared communication unit 5 is not particularly limited to the above-mentioned embodiment, and is connected by a cable, and the GPS sensor Also, it may be installed at a position distant from the main body of the arithmetic processing unit.

[0033]

According to the GPS of the present invention, it is composed of a GPS sensor having a receiving antenna, a GPS receiving unit and an infrared communication unit, and an arithmetic processing unit having an infrared communication unit. A connection cable for connecting the arithmetic processing unit is unnecessary, malfunctions due to external electromagnetic wave noise are eliminated, and data transmission can be performed while suppressing radiation noise to the outside.
Furthermore, since it is cordless, it is easy to install the device without choosing the place to install it.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a GPS according to an embodiment of the present invention.

FIG. 2 is a GP constituting a GPS which is an embodiment of the present invention.
It is a block diagram of an S sensor.

FIG. 3 is a block diagram of a conventional GPS.

[Explanation of symbols]

 1 Receiving Antenna 2 GPS Receiving Unit 3 GPS Sensor 4 Processor 5 Infrared Communication Unit 6 Connection Cable 7 Power Cable

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location H04B 10/22 (72) Inventor Yoshitaka Tezuka 1048 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (1)

[Claims] 1. A receiving antenna (3) for receiving a GPS signal transmitted from a GPS satellite, a GPS receiving unit (4) for signal processing the GPS signal, and communication of GPS data calculated by the GPS receiving unit (4). Global positioning, characterized by comprising a GPS sensor (1) having an infrared communication unit (5) for operating and an arithmetic processing unit (2) having an infrared communication unit (5) communicating with the GPS sensor (1). system.