JP3029032U - Monitoring device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a monitoring device capable of easily grasping the position of a moving body at a remote place. A monitoring device includes a position information transmission device 1 and a relative position output device 2 separate from the position information transmission device 1. The position information transmitting device 1 includes a GPS position calculating unit 4 that obtains its own position information based on GPS radio waves, and a satellite signal transmitting unit 5 that transmits the position information obtained by this GPS position calculating unit 4 to a communication satellite 7. Is equipped with. The relative position output device 2 stores a storage unit 10 that stores map information, a superimposing unit 9 that superimposes position information and map information transmitted via the communication satellite 7, and image information that is superposed by the superimposing unit 9. And an output unit 12 for outputting.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a mobile body monitoring device.

[0002]

[Prior art]

 Conventionally, a GPS positioning device has been known as a device for measuring the self-position of a moving body (see, for example, Japanese Patent Laid-Open No. 4-329709). The GPS positioning device is a device that receives radio waves from a plurality of GPS satellites (artificial satellites) belonging to the Global Positioning System and calculates the current position of the mobile unit.

[0003]

[Problems to be solved by the device]

 In mountain climbing or hiking, the GPS positioning device is carried by a mobile body (mountaineer or the like), and the measured position information of the person is known to a remote headquarters (base camp or the like). However, this method has the problem that it is inaccurate because the latitude and longitude information is verbally transmitted using wireless, and it cannot be transmitted to a remote location. The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a monitoring device capable of easily grasping the position of a mobile body at a remote place.

[0004]

[Means for Solving the Problems]

 To achieve the above object, the monitoring device of the first invention comprises a position information transmitting device and a relative position output device separate from the position information transmitting device. The position information transmission device includes a GPS position calculation unit that obtains its own position information based on GPS radio waves, and a satellite signal transmission unit that transmits the position information obtained by this GPS position calculation unit to a communication satellite. . The relative position output device includes a storage unit that stores map information, a superposition unit that superimposes position information and map information transmitted via a communication satellite, and an output unit that outputs image information that is superposed by the superposition unit. It has and.

The monitoring device of the second invention comprises a position information transmitting device and a relative position output device separate from the position information transmitting device. The position information transmitting device includes a GPS position calculating unit that obtains its own position information based on GPS radio waves, and a telephone signal transmitting unit that transmits the position information obtained by this GPS position calculating unit to a telephone station. ing. The relative position output device includes a storage unit that stores map information, a superimposing unit that superimposes position information and map information transmitted via a telephone station, and an output unit that outputs image information that is superposed by the superimposing unit. It has and.

[0006]

[Embodiment of device]

 Embodiments of the present invention will be described below. FIG. 1 shows a first embodiment. 1, the monitoring device is composed of a position information transmitting device 1 carried by a moving body (child) and a relative position output device 2 separate from the position information transmitting device 1. The relative position output device 2 is placed at a remote place (home, etc.) away from the position information transmission device 1 and is connected to the satellite signal receiving unit 8 and the monitor 13.

The position information transmitting device 1 includes a GPS receiving unit 3, a GPS position calculating unit 4, and a satellite signal transmitting unit 5. The GPS receiving unit 3 is composed of a GPS antenna and a detector / amplifier, and simultaneously receives satellite signals from three GPS satellites 6 and outputs them to the GPS position calculating unit 4. The GPS position calculation unit 4 is composed of a micro computer and calculates its own position information from the three satellite signals. That is, the GPS position calculation unit 4 obtains the distance from each GPS satellite 6 based on the time difference between the time when the radio wave is transmitted from the three GPS satellites 6 and the time when the GPS reception unit 3 receives the signal, and the distance measurement is performed by the triangulation. The position of the moving body is calculated according to the principle. The GPS position calculator 4 sends the calculated position information to the satellite signal transmitter 5. The satellite signal transmitter 5 is composed of a transmitter and an antenna for satellite communication, and transmits the position information together with the registration number of the mobile unit to the communication satellite 7 at a frequency of about 1.5 GHz, for example.

The communication satellite 7 transmits the position information to the satellite signal receiving unit (parabolic antenna and tuner) 8 and sends the position information to the relative position output device 2 connected to the satellite signal receiving unit 8.

The relative position output device 2 includes a superposition unit 9, a storage unit 10, a D / A converter 11, an output unit 12, and an operation unit 34. The satellite signal receiving unit 8 inputs the position information to the overlapping unit 9. The superimposing unit (superimposer) 9 is composed of a microcomputer, reads the map information of the area stored in the storage unit 10 from the position information, and superimposes the position information on the map. The superposition unit 9 then outputs the position information superimposed on the map to the D / A converter 11. The D / A converter 11 converts the position information consisting of a digital signal into an analog signal and sends the position information to the output section (connector) 12. The output unit 12 outputs the above position information to a monitor (television receiver) 13 connected to the relative position output device 2. Thereby, the position of the moving body can be easily grasped in a remote place. If there are a plurality of position information transmitting devices 1, the registration number of the mobile unit is input from the operation unit 34 and the target position information transmitting device 1 is selected.

By the way, if a BS satellite or a CS satellite is used as the communication satellite 7, the satellite signal receiving unit 8 can use an existing satellite broadcast receiving device. Further, the satellite signal receiving section 8 may be a base station of a cable television, and position information may be sent to the relative position output device 2 through a cable. Further, if a timer is connected to the satellite signal transmitting unit 5 and the position information transmitted from the satellite signal transmitting unit 5 to the communication satellite 7 is set at, for example, 10-minute intervals, the power consumption of the position information transmitting device 1 is reduced. It can be reduced.

FIG. 2 shows a second embodiment. In FIG. 2, the relative position output device 2 is placed at a remote place and connected to a public telephone line 32. The relative position output device 2 is connected to the telephone 33, and the telephone 33 can communicate with the public telephone line telephone station 31 and the wireless telephone line telephone station 30 via the relative position output device 2. .

The position information transmitting device 1 includes a GPS receiving unit 3 and a GPS position calculating unit 4 as well as a modem 20 and a telephone signal transmitting unit 50. The GPS position calculation unit 4 calculates the position information and sends it to the modem 20. The modem 20 converts the position information into an analog signal and sends it to the telephone signal transmitting section 50.

The telephone signal transmitting section 50 includes a transmitting section 51, a telephone number registration section 52 and a receiving section 53. The telephone signal transmitting section 50 communicates with the wireless telephone line telephone station 30 through the transmitting section 51 and the receiving section 53. The telephone number registration unit 52 stores the registered telephone number of the telephone signal transmission unit 50 itself.

The relative position output device 2 includes a modem 21, a superposition unit 9, a storage unit 10, a D / A converter 11, an output unit 12, and an operation unit 34. The analog position information sent via the public telephone line 32 is sent to the modem 21. The modem 21 demodulates the analog position information into a digital signal and sends it to the superposition unit 9.

Next, how to use this monitoring apparatus will be described. First, from the operation unit 34, enter the telephone number or the like of the location information transmitting device 1 of the mobile unit to be monitored, and transmit the location information via the public telephone line telephone station 31 and the wireless telephone line telephone station 30. The device 1 and the relative position output device 2 are connected and the relative position output device 2 outputs a position information transmission command to the reception unit 53 of the telephone signal transmission unit 50. The reception unit 53 outputs the transmission command to the GPS position calculation unit 4 via the modem 20, whereby the GPS position calculation unit 4 calculates the position. The GPS position calculator 4 sends the calculated position to the transmitter 51 of the telephone signal transmitter 50 via the modem 20. The transmitter 51 transmits the position information to the modem 21 via the wireless telephone line telephone station 30, the public telephone line telephone station 31, and the public telephone line 32. After that, the superimposing unit 9 superimposes the position information and the map, and an image is displayed on the monitor 13. In this embodiment, since the telephone line which is bidirectional communication is used, it is possible to call the position information transmitting device 1 from the relative position output device 2 and grasp the position information of the moving body. Therefore, since the position information can be transmitted from the position information transmitting device 1 only when necessary, the power consumption can be remarkably reduced. The rest of the configuration of the second embodiment is similar to that of the first embodiment, and the description thereof is omitted.

A communication satellite may be provided between the telephone signal transmitting unit 50 and the wireless telephone line telephone station 30 to use a satellite telephone network which will be realized in the future. If a digital radio telephone station is used, the modem 20 on the side of the position information transmitting device 1 can be omitted. Further, the modem 21 on the position information transmitting device 1 side may be omitted by using a digital telephone line (ISDN or the like).

[0017]

[Effect of device]

 As described above, according to the present invention, the position information of the moving body sent from the position information transmission device is output to the monitor from the relative position information output device placed at a remote location, so that the position information can be moved on the map. Since the position of the body can be displayed, the position of the moving body can be easily grasped at a remote place. In particular, since the position information transmission device and the relative position output device are provided separately, the position information transmission device does not need a monitor or a display unit such as a liquid crystal display, so that the position information transmission device is lightweight and inexpensive. Further, according to the second aspect, since the telephone line which is the two-way communication is used, the position information transmitting device can be called from a remote place at any time and the position information of the moving body can be grasped. The power consumption of the information transmission device can be significantly reduced.

The present invention can be used in an extremely wide range of applications, but specific applications and effects are listed below. If a mountaineer carries a position information transmitting device when climbing a snowy mountain and a relative position output device is installed in a base camp or the like, the position of the mountaineer in a disaster can be easily specified. If the location information transmission device is carried by students during school excursions or excursions and a relative position output device is installed in the school or in the home, the location of lost students can be easily specified. Furthermore, if a child carries the location information transmission device and a relative position output device is installed at home, the child's whereabouts can be known while at home, which can help prevent crime. Also, if a location information transmission device is installed in the cash case during cash transportation and a relative position output device is installed in the security company, crimes during cash transportation can be suppressed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a monitoring device according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a monitoring device according to a second embodiment of the present invention.

[Explanation of symbols]

 1: Position information transmission device 2: Relative position output device 4: GPS position calculation unit 5: Satellite signal transmission unit 50: Telephone signal transmission unit 9: Superposition unit 10: Storage unit 12: Output unit

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Claims (2)

[Scope of utility model registration request] 1. A monitoring device comprising a position information transmitting device and a relative position output device separate from the position information transmitting device, wherein the position information transmitting device detects its own position based on GPS radio waves. The relative position output device includes a GPS position calculation unit that obtains information, and a satellite signal transmission unit that transmits the position information obtained by the GPS position calculation unit to a communication satellite, and the relative position output device includes a storage unit that stores map information. A monitoring device comprising: a superimposing unit that superimposes the position information and the map information transmitted via the communication satellite, and an output unit that outputs image information that is superposed by the superimposing unit. 2. A monitoring device comprising a position information transmitting device and a relative position output device separate from the position information transmitting device, wherein the position information transmitting device detects its own position based on GPS radio waves. A GPS position calculation unit that obtains information, and a telephone signal transmission unit that transmits the position information obtained by the GPS position calculation unit to a telephone station, and the relative position output device includes a storage unit that stores map information. A monitoring device, comprising: a superimposing unit that superimposes the position information and the map information transmitted via the telephone station, and an output unit that outputs the image information that is superposed by the superimposing unit.