JPH0944793A - Transmission and reception system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize the moving status of a business vehicle for every unit time exactly, minutely and in real time. SOLUTION: As the transmission/reception systems of a mobile object and a reception side, a mobile object is provided with a present information detection means 10 and a transmission means 20 at first. The transmission means transmits present information (POS, TM, VEL). The reception side is provided with a reception means 30, an output control means 40 and output means 50 and 60. The reception means 30 receives the present information transmitted from the transmission means 20 and the output control means 40 performs an output control for the output means 50 according to the received present information. Thus, the output of information such as the location, speed and time of the mobile object, the moving route and the moving speed between plural spots, etc., are made to be executed in the output means 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception system, and is particularly suitable as a transmission / reception system between a mobile unit and its headquarters.

[0002]

2. Description of the Related Art For example, if the head office management department can grasp the movement status of a transportation vehicle or a commercial vehicle, the data can be utilized for improving sales service and labor management. For this reason, so-called tachographs have conventionally been mounted on business vehicles and the like, and time and speed information have been recorded on paper.

[0003]

However, in the case of the tachograph, the data is only the time and speed information, and the view of the movement situation is limited. Also, of course, the tachograph data is not known to the management department in real time, for example, and it is impossible to flexibly issue a command in accordance with the movement situation of a business vehicle.
Furthermore, it is not possible to obtain more detailed information about the operating conditions of the moving body such as the traveling route and the traveling speed according to the traveling section.

[0004]

In view of such a problem, the present invention enables confirmation of the position of a moving body (sales vehicle, etc.) for each unit time, for example, and enables a more accurate and detailed sales in a management department or the like. The purpose is to be able to understand the movement situation of the car and to be able to execute this in near real time.

For this reason, as a transmission / reception system for a mobile unit and a receiving side, the mobile unit is first provided with current information detecting means and transmitting means. The current information detecting means can detect at least the current position, the current time, and the current speed as the current information. The transmitting means transmits the current information detected by the current information detecting means. On the receiving side, receiving means,
An output control unit and an output unit are provided. Then, the receiving means receives the current position information transmitted from the transmitting means, the output control means determines the state of the moving body according to the current information received by the receiving means, and controls the output of the output means. The output means outputs at least information about the position, time, and speed of the moving body.

In particular, the output control means discriminates at least the traveling route or traveling speed as the condition of the moving body from the current information received by the receiving means at predetermined time intervals, and outputs the output relating to the traveling route or traveling speed to the output means. Allow it to run.

In a navigation system which has become widespread in recent years, a GPS (Global Position) is used as a vehicle position detecting means.
Many use an ioning system (wide area positioning system) unit. In addition, mobile communication means such as car phones and mobile phones have become widespread.

For example, the GPS can be used to detect the position and speed of a moving body. If a transmission / reception system that communicates these detected current information is configured between the mobile body and the reception side, the reception side can know the movement status including the position, speed, and time of the mobile body in almost real time in detail. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a transmission / reception system as an embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 shows a schematic configuration of a transmission / reception system.
Reference numeral 1 denotes a moving body, for example, a commercial vehicle. At least the GPS unit 10 and the transmitter 20 are mounted on the mobile unit 1. The GPS unit 10 detects the current position information POS, the current time information TM, and the current speed information VEL of the mobile unit 1, and the transmitter 2 transmits this data.

Reference numeral 2 denotes a headquarters for managing the mobile unit 1.
The main unit 2 is provided with, for example, a receiver 30, a controller 40, a display unit 50, and a recording / playback unit 60. The current position information PO transmitted from the mobile unit 1 by the receiver 30
S, current time information TM, and current speed information VEL are received. The received data is processed by the controller 40, and is displayed as the position of the mobile unit 1 in the map image on the display unit 50 or recorded as the movement record of the mobile unit 1 in the recording / reproducing unit 60, for example.

By doing so, the head office 2 grasps the movement status of the mobile unit 1 in real time while looking at the display unit 50, and later, by reproducing the data from the recording / reproducing unit 60, the mobile unit 1 is reproduced. You can know the movement situation of.

Such a transmission / reception system will be specifically described below. FIG. 2 is a block diagram showing a system configuration installed in the mobile unit 1. As the GPS unit 10, a GPS antenna 11 and a GPS receiver 12 are provided. The GPS unit 10 calculates a self-position on the earth by utilizing a plurality of high-orbit artificial satellites, and the GPS receiver 12 calculates a distance and a change in distance from a signal received by the GPS antenna 11 and calculates a self-position. Is obtained as coordinate data. That is, the current position information POS is calculated as the coordinate values of latitude and longitude, and the current time information TM and the current speed information VEL are calculated and output.

Reference numeral 20 denotes a transmitter. The transmitter 20 is configured using, for example, a digital cellular mobile phone unit. Reference numeral 21 is a controller of the transmitter 20.
Reference numeral 22 is a channel encoder, 23 is a modulator, and 24 is a transmitter. The transmission data is subjected to encoding processing, frame processing, and the like by the channel encoder 22, and the modulator 23 performs, for example, π / 4 shift QPSK modulation.
Then, the modulated signal is subjected to linear power amplification or the like by the transmitter 24 and is transmitted and output as a transmission signal from the antenna unit 26 via the transmission / reception switch 25.

Since a mobile phone unit is used, a receiving system is also constructed. 27 is a receiver, 28 is a demodulator, and 29 is a channel encoder. The signal received by the antenna unit 26 is taken into the receiver 27 via the transmission / reception switch 25 and subjected to processing such as synchronous detection. Then, after being demodulated by the demodulator 28, the received data is decoded by the channel decoder 29.

Although not shown, a transmitter / receiver, an A / D converter for the transmitted voice signal, a D / A converter for the received voice data, etc. are provided in this configuration, and it is usually used as a mobile phone. it can.

In the case of this example, the channel encoder 22
The current position information POS, which is the output of the GPS receiver 12,
Since the current time information TM and the current speed information VEL are supplied, each data of the current position information POS, the current time information TM and the current speed information VEL is encoded and modulated and transmitted from the transmitter 20. . The controller 21 controls transmission of these data. For example, the current position information POS and the current time information T are set at regular intervals.
M, the current speed information VEL is transmitted.

40 is a navigation controller, 50
Is a display unit having, for example, a liquid crystal screen, 6
Reference numeral 0 is a recording / reproducing device section corresponding to the magneto-optical disk (mini disk) 90, and 80 is an operation section for the user to perform various operations.

The navigation controller 40 is a GPS
The vehicle position can be grasped from the information supplied from the unit 10. Then, the map information is fetched from the recording / reproducing device section 60, and the display unit 50 is caused to display the own vehicle position on the map, whereby the driver can be guided on the road. As will be described later, the mini disk 9 reproduced by the recording / reproducing device section 60.
Reference numeral 0 indicates a premastered disc or a hybrid disc in which map information is recorded as ROM data.

In the navigation controller 40, 41 is an interface section. 42 is a CPU that performs various calculations to generate the required control signals, 43 is a program ROM, and 44 is a work RAM. A display data RAM 45 holds the map video data read from the recording / reproducing device section 60. Reference numeral 46 is a graphic controller, and 47 is a graphic accelerator.

As the basic operation of the navigation controller 40, first, the CPU 42 causes the recording / reproducing device section 60 to operate.
A control signal is output to control the playback operation from the mini disk 90. Then, the reproduction data is displayed data R
Take in AM45. Here, the CPU 42 sends the current position information POS from the GPS unit 10, the current time information TM,
Based on the current speed information VEL, the display point of the current vehicle position and the map image portion to be displayed are fixed. Then, the graphic controller 46 controls the display unit 50 based on these data to execute the map display and the vehicle position display in the map display.

Of course, the display state has various modes,
In addition to displaying the vehicle position as described above, it is also possible to perform a map search or display a destination according to a user operation.

The operation section 80 is provided with an operation mechanism necessary for instructing operation of the navigation controller 40.
For example, an operation mechanism such as a joystick, a pressing key, and a rotary encoder is provided.

The recording / reproducing device section 60 is constructed as shown in FIG. As shown in FIG. 4, the mini disk 90 is rotationally driven by the spindle motor 62. An optical head 63 irradiates the mini disk 90 with laser light at the time of recording / reproducing, which provides a high level laser output for heating the recording track to the Curie temperature at the time of recording, and is reflected by the magnetic Kerr effect at the time of reproducing. It provides a relatively low level laser power for detecting data from light.

For this reason, the optical head 63 is equipped with a laser diode as a laser output means, an optical system including a polarization beam splitter and an objective lens, and a detector for detecting reflected light. The objective lens 63a is held by a biaxial mechanism 64 so as to be displaceable in the disk radial direction and in the direction in which it comes in contact with and separates from the disk.

Reference numeral 66 denotes a magnetic head which applies a magnetic field modulated by the supplied data to the magneto-optical disk, and is arranged at a position facing the optical head 63 with the mini disk 90 interposed therebetween. The entire optical head 63 and the magnetic head 66 are movable in the disk radial direction by a sled mechanism 65.

The information detected from the mini disk 90 by the optical head 63 by the reproducing operation is the RF amplifier 67.
Is supplied to. The RF amplifier 67 calculates the reproduced RF signal, tracking error signal, and
Focus error signal, absolute position information (Mini Disc 9
0, absolute position information recorded as pregroove (wobbling groove), address information, focus monitor signal, and the like are extracted. And the extracted reproduction RF
The signal is supplied to the encoder / decoder unit 68. The tracking error signal and the focus error signal are supplied to the servo circuit 69, and the address information is supplied to the address decoder 70. Further, the absolute position information and the focus monitor signal are supplied to the system controller 61 configured by, for example, a microcomputer.

The servo circuit 69 supplies the supplied tracking error signal, focus error signal, track jump command, seek command from the system controller 61,
Various servo drive signals are generated according to the rotation speed detection information of the spindle motor 62, and the biaxial mechanism 64 and the sled mechanism 65 are controlled to perform focus and tracking control.
V) or constant linear velocity (CLV).

The reproduced RF signal is sent to the encoder / decoder unit 6
After EFM demodulation and decoding such as CIRC in 8,
Buffer RAM 7 once by the memory controller 72
Written to 1. Then, under the control of the memory controller 72, the signal read from the buffer RAM 71 at a predetermined timing is supplied to the navigation controller 40 as reproduction data.

When the recording operation is performed on the mini disk 90, the data supplied from the navigation controller 40 is temporarily written in the buffer RAM 71 by the memory controller 72. Then, it is read at a predetermined timing and sent to the encoder / decoder unit 68. Then, after being subjected to encoding processing such as CIRC encoding and EFM modulation in the encoder / decoder unit 68, it is supplied to the magnetic head drive circuit 73.

The magnetic head drive circuit 73 supplies a magnetic head drive signal to the magnetic head 66 according to the encoded recording data. That is, the magnetic field of magnetic field 66 is applied to the mini disk 90 by the magnetic head 66. Further, at this time, the system controller 61 supplies a control signal to the optical head so as to output a laser beam of a recording level.

The mini disk 90 used in the recording / reproducing device section 60 is of the pre-mastered type or the hybrid type as described above. In the case of the pre-mastered type, all data is recorded as ROM data in pits. Therefore, magneto-optical recording cannot be performed, and in this case, it will be used as reproduction software for map information. The hybrid type has a ROM data area and a magneto-optical area on the disc, and a user can record data in the magneto-optical area.

FIG. 5 shows the structure of the hybrid disc. This is a hybrid disc mini disc 90
Is an information recording area 91 from the inner peripheral side near the center of rotation O to the lead-in area 92, the reproduction-only area 93, and the U-TO.
C area 94, recording / reproducing area 95, lead-out area 96
Is provided. In the lead-in area 92 and the reproduction-only area 93, data is recorded as pits, while U
The TOC area 94, the recording / reproducing area 95, and the lead-out area 96 are magneto-optical areas to record data magnetically.

So-called TOC information is recorded as management information in the lead-in area 92, and reproduction-only data, that is, map video data in this case, is recorded in the reproduction-only area 93. The recording / reproducing area 95 is an area in which the user can write data.
The recording data is managed by the U-TOC data recorded in the U-TOC area 94. When such a hybrid disc is loaded in the recording / reproducing device unit 60, predetermined data is supplied from the navigation controller 40 to the recording / reproducing device unit 60 by the user's operation or automatically and recorded on the disc. be able to.

The system on the side of the mobile unit 1 is constructed as shown in FIG. Among these, at least the configuration of the transmission system in the GPS unit 10 and the transmitter 20 may be provided as the transmission device in the transmission / reception system of this example.

The receiving device in the transmitting / receiving system of this example is configured as shown in FIG. First, the receiver 30 is provided as shown in FIG. 1, but when the transmitter 20 in FIG. 2 is a mobile phone unit, the receiver 30 includes the equipment of a mobile phone base station and a public line.

That is, 31 is a mobile telephone base station of a digital cellular line, and the data transmitted from the transmitter 20 is
The signal is received by the antenna unit 32 in the mobile phone base station 31, taken into the receiver 33, and subjected to processing such as synchronous detection. Then, after being demodulated by the demodulation unit 34, the reception data is decoded by the channel decoder 35. The decoded reception data is interfaced by the ISDN transmission unit 36 and sent to the ISDN line 37, and then sent to the ISDN reception unit 38 corresponding to the ISDN line of the head office 2.

As a device configuration in the head office 2, a navigation controller 40, a display unit 50, a recording / reproducing device section 60, and an operating section 80 are provided. Each of these may have the same configuration as the navigation controller 40, the display unit 50, the recording / reproducing device section 60, and the operation section 80 in the moving body in FIG. Therefore, the internal configuration and basic operation of each unit are the same as those in FIG. 2, and a description thereof will be omitted.

2 and 3, the moving body 1 and the head office 2 are arranged.
By establishing a transmission / reception system between them, the following operation becomes possible. First, the mobile unit 1 side transmits GPS data at predetermined time intervals. That is, the controller 21 of the transmitter 20 has the current position information POS, the current time information TM, and the current speed information VEL output from the GPS receiver 12.
Are taken as transmission data at predetermined time intervals, channel encoding processing and modulation processing are executed, and the data is transmitted from the antenna unit 26.

This transmission data is sent to the head office 2 via the ISDN line 37 via the mobile phone base station 31. Then, in the head office 2, the current position information POS, the current time information TM, and the current speed information VEL from the ISDN receiving unit 38 are taken into the navigation controller 40.

That is, by this, the navigation controller 40 in the headquarters 2 can perform the same display as the navigation controller 40 in the mobile unit 1. That is, the map information of a predetermined area is reproduced from the mini disk 90 in the recording / reproducing device section 60 from the current position information POS information, and the reproduced data is displayed data RAM.
Take in 45. Then, the CPU 42 displays the current position information PO
Based on S, the current time information TM, and the current speed information VEL, the display point of the current position of the moving body 1, the map image portion to be displayed, the speed, the time at each point, etc. are determined.
Then, the graphic controller 46 controls the display unit 50 based on these data to execute the map display, the position display of the mobile unit 1 in the map display, the time, the speed display and the like.

Further, since new current position information POS, current time information TM, and current speed information VEL are sent every predetermined time, the navigation controller 40 on the side of the head office 2 moves the position of the moving body 1 at a certain time. It is possible to discriminate not only the vehicle speed and the speed but also various traveling conditions such as a traveling route and a traveling speed condition between a plurality of points and display them on the display unit 50.

By checking the display of the display unit 50 executed by the navigation controller 40, the staff of the head office 2 can grasp the situation of the moving body 1 in real time, and the graspable information corresponds to the time. There are a wide variety of positions, speeds, travel routes estimated from these, traveling speed conditions between multiple points and road conditions estimated from them, and labor efficiency. Of course, the contents to be displayed on the display unit 50 may be changed according to the situation that the staff of the headquarters 2 wants to know.

Further, the data indicating the condition of the moving body 1 may be supplied from the navigation controller 40 to the recording / reproducing device section 60 and recorded on the mini disk 90. Needless to say, the recorded data can be used later for various management such as labor management and sales management by organizing and using it as sales data.

By the way, when the configuration shown in FIGS. 2 and 3 is adopted,
In addition to this, various operations are possible. First, since the moving body 1 also has the recording / reproducing device unit 60, the navigation controller 40 informs the recording / reproducing device unit 60 of the current position information POS, the current time information TM, and the current speed information VE.
It is also possible to supply L as recording data at predetermined time intervals and record it on the mini disk 90. In other words, the traveling situation data is recorded in the recording / reproducing device unit 60, and this can be used for various management as well as the data recorded in the recording / reproducing device unit 60 in the head office.

Further, since the portable telephone unit is used, a normal telephone call can be executed, but it is conceivable that the voice at this time can be supplied to the recording / reproducing device section 60 to be recorded. Further, if the data can be transmitted from the head office 2 side, various messages and instructions can be displayed on the display unit 50 of the mobile unit 1, for example.

By the way, the present invention is not limited to the configuration of the above-described embodiment, and various modifications can be considered. For example, although the ISDN line is used as an example, another communication network such as a packet network may be used. further,
Instead of using a mobile phone, the transmitter of the mobile unit and the receiver of the headquarters may be wireless communication devices so that direct communication is performed between the mobile unit and the headquarters. Although the mini-disk is used as the recording medium for the recording / reproducing device section, a magneto-optical disk or a magnetic disk other than this may be used.
A tape-shaped recording medium such as AT may be used.

Furthermore, in the above-mentioned example, the description has been made assuming that the traveling status can be grasped at the head office 2 for one moving body.
It is also possible to display the traveling status and the like of a plurality of moving bodies at the same time. However, when performing simultaneous display, it is necessary to transmit the ID data uniquely attached to the mobile body in addition to the GPS data.

[0048]

As described above, according to the present invention, at the head office on the receiving side, the traveling status of the moving body (business vehicle etc.) per unit time, such as position, speed, time, further traveling route or plural points. It is possible to check the traveling speed status etc. between, for example, in the management department etc. accurately and in detail,
Moreover, there is an effect that it becomes possible to grasp the movement situation of the sales vehicle and the like in almost real time.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a transmission / reception system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a configuration on the moving body side in the transmission / reception system of the embodiment.

FIG. 3 is a block diagram of a configuration of a reception side in the transmission / reception system of the embodiment.

FIG. 4 is a block diagram of a recording / reproducing device section in the transmission / reception system of the embodiment.

FIG. 5 is an explanatory diagram of a hybrid disc used in the recording / reproducing device section of the transmission / reception system of the embodiment.

[Explanation of symbols]

1 mobile unit, 2 main units, 10 GPS units, 11
GPS antenna, 12 GPS receiver, 20 transmitter, 2
1 controller, 22 channel encoder, 23
Modulation unit, 24 transmitter, 25 transmission / reception switch, 26 antenna unit, 30 receiver, 31 mobile phone base station, 32 antenna unit, 33 receiver, 34 demodulation unit, 35 channel decoder, 36
ISDN transmitter, 37 ISDN line, 36 ISDN
Receiver, 40 navigation controller, 50 display unit, 60 recording / reproducing device section, 80 operation section, 90 mini disk

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H04B 7/26 G01S 5/14 // G01S 5/14 H04B 7/26 J

Claims (2)

[Claims] 1. A mobile unit comprising current information detecting means and transmitting means, wherein the current information detecting means can detect at least the current position, the current time, and the current speed as the current information. Is configured to be able to transmit the current information detected by the current information detecting means, and the receiving side is provided with a receiving means, an output control means, and an output means. Receiving the current information transmitted from the means, the output control means determines the state of the moving body according to the current information received by the receiving means, and controls the output of the output means to output the output means. In the transmission / reception system, at least information on the position, time, and speed of the moving body is output. 2. The output control means determines at least a traveling route or a traveling speed between a plurality of points as the condition of the moving body from the current information received by the receiving means at predetermined time intervals, and travels to the output means. The transmission / reception system according to claim 1, wherein the transmission / reception system is configured to execute an output regarding a traveling speed between a route or a plurality of points.