JPH04229729A - Notifying device for position of mobile station - Google Patents

Abstract

PURPOSE:To automate the state management of a mobile station by allowing the mobile station to discriminate and store a state change of its own station and to send the stored state management and its time data to a control station only when a state change exists in response to a polling from the control station. CONSTITUTION:A mobile station 14 discriminates a state change in its own station and stores the state together with a time data. Then with a command signal being a calling signal such as a polling signal from a control station, a control means 23 uses a position measurement data obtained as an output of a GPS receiver 22 as a series of digital signals and adds a state data of its own station to the position measurement data thereby integrating them. Then the resulting data is sent to a transceiver 28 via a changeover means 27 and sent from a communication antenna 29 to the control station. Thus, the state management of the mobile station is implemented without artificial data input and giving no effect onto conversation or communication.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention manages a plurality of vehicles and constantly monitors the status of transportation of people, cargo, etc., patrols by police or security companies, dispatch of vehicles, etc. at a command center, and controls the operation of the vehicles. This relates to a mobile station location reporting device that controls mobile stations, and mobile stations are not limited to mobile stations such as vehicles and ships, but are intended for those that change their location over time. .

0002

[Prior Art] This mobile station location reporting device uses AV
M (Automatic Vehicle Monit)
oring) method is well known.

[0003] Japanese Patent Publication No. 2-27718 discloses a method of implementing the above technique using polling.

That is, a first memory circuit in which necessary programs are stored in advance, and a central processing section that processes status signals and count signals given from the taximeter into business information according to the program stored in the first memory circuit. and a second storage section for storing the business information created by the central processing section, and further includes a second storage section for storing the sales information created by the central processing section, and further includes a second storage section for storing the sales information created by the central processing section, and a second storage section for storing the sales information created by the central processing section. It is equipped with a third storage circuit for recording business information transferred from the circuit. Therefore, the business information handled by the taximeter can be electrically transferred and stored outside the taximeter, and moreover,
Functional changes due to legal regulations can be made without making any changes to the taximeter.

[0005]

[Problems to be Solved by the Invention] However, in the mobile station location reporting device published in the conventional gazette, since the taximeter signal is used as the reference signal, the main information is distance, actual vehicle, and empty vehicle, and the driver is I had to keep a daily report. Furthermore, it was not possible to manage the movement status of these taxis as mobile stations.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a mobile station location reporting device that can manage the status of a mobile station without manually inputting data, and that does not affect frequently performed conversational communications. It is something.

[0007]

[Means for Solving the Problems] The mobile station location reporting device according to the invention of claim 1 provides a state change determination means in which a mobile station determines a change in the state of its own station and stores the state data together with time data. and position determination means for determining the position of the mobile station at predetermined time intervals and storing the positioning data. transmitting the status data and time data stored during that time to the command station only when there is a change in status between the time and the time when the current call is received from the command station;
It transmits positioning data when there is no status data.

[0008] The mobile station position reporting device according to the invention of claim 2, as in the invention of claim 1, comprises a state change determining means, a position determining means, and a transmitting means, and the positioning information is stored in the storage means on the command station side. It stores data and status data and outputs it as necessary. The mobile station location reporting device according to the invention of claim 3 includes a state change determining means for allowing the mobile station to determine a state change of its own station and storing the state data together with time data; The station determines the position of its own station and stores the positioning data together with time data. Only when there is a change in status before receiving a call, the status data, time data, and positioning data stored during that time are transmitted to the command station, and when there is no status data,
a transmitting means for transmitting only positioning data and time data;
storing the time data, positioning data and status data;
It also includes a storage means on the command station side that outputs the information as necessary.

[0009]

[Operation] In the invention of claim 1, the mobile station determines the state change of its own station, stores the state data together with time data in the state change determination means, and also determines the position of its own station at predetermined time intervals. The positioning data is stored in the position determining means. Then, the command station calls each mobile station by polling, and the mobile station that receives the call sends a message from the previous call to the current call from the command station. Only when there is a change in status before receiving the command, the status data and time data stored during that time are transmitted to the command station, and when there is no status data, positioning data is transmitted.

In the invention of claim 2, the mobile station determines the state change of its own station, stores the state data together with time data in the state change determination means, and also determines the position of its own station at predetermined time intervals. The positioning data is stored in the position determining means. Then, the command station calls each mobile station by polling, and the mobile station that receives the call sends a message from the previous call to the current call from the command station. Only when there is a change in status before receiving the command, the status data and time data stored during that time are transmitted to the command station, and when there is no status data, only positioning data is transmitted. At the command station, the positioning data and status data sent from the transmitting means are stored in a storage means, and are outputted on a display means, a printer, etc. as necessary.

In the third aspect of the invention, the mobile station determines a change in the state of its own station, sends the state data together with time data to the state change determination means, and determines the position of its own station at predetermined time intervals. , the positioning data is stored in the position determining means together with the time data. Then, the command station calls each mobile station by polling, and the mobile station that receives the call sends a message from the previous call to the current call from the command station. Only when there is a change in status before receiving the command, the status data, time data, and positioning data stored during that time are transmitted to the command station, and when there is no status data, only the positioning data and time data are transmitted. However, at the command station, the time data, positioning data, and status data sent from the transmitting means are stored in a storage means, and are outputted on a display means, a printer, etc. as necessary. Note that in this polling, even if the communication time interval is lengthened, time data, positioning data, and status data can be obtained during that time.

0012

[Embodiment] Fig. 1 is a block diagram of a mobile station of a mobile station position reporting device according to an embodiment of the present invention, and Fig. 2 is a block diagram of a command station side of a mobile station position reporting device according to an embodiment of the present invention. figure,
FIG. 3 is an explanatory diagram of a schematic configuration showing the relationship between a mobile station and a command station of a mobile station position reporting device according to an embodiment of the present invention.

First, the schematic configuration will be explained using FIG. 3.

[0014] The positioning artificial satellite (hereinafter simply referred to as ``GPS (Global Positioning Satellite)'' explained in this embodiment)
ng System) 11, 12, and 13 are artificial satellites that output frequencies for positioning, and measure the position of the mobile station 14 in absolute position from the position of the artificial satellite. In order to obtain positioning data, three or more GPSs 11, 12, and 13 are used. The mobile station 14 such as a vehicle in this embodiment is a communication means carried by a mobile object such as a vehicle, and receives radio waves of the GPS 11, 12, 13, and moves to each GPS 11, 12, 13 based on the propagation time of the radio wave. station 1
This is to find the distance between 4. Each GPS11, 12,
13 operates in a fixed orbit around the earth,
The absolute position of the mobile station 14 on the earth is calculated from the position and distance of each GPS 11, 12, 13 on the orbit and the position is specified, and the detection error is according to the inventors' experiments. The accuracy can be set within a range of 100m. The mobile station 14 calculates its position using a known GPS receiver 22 and normally transmits latitude and longitude data, ie, positioning data, to the command station 15. The command station 15 displays the operating status of the mobile station 14 by superimposing the position of the mobile station 14 on a display such as a CRT or panel displaying a map, for example. Note that the command station 15 may be different from the command station 1 depending on the size and shape of the wireless service area.
In some cases, a plurality of 5s may be arranged.

Next, the configuration of the mobile station 14 of the mobile station location reporting device according to the present embodiment shown in FIG. 1 will be explained.

In FIG. 1, the antenna 21 is connected to the GPS 11.
, 12, and 13 are received. The GPS receiver 22 is G
It is a measurement receiver for obtaining position signals of latitude and longitude from the radio waves of PSs 11, 12, and 13, and operates as an absolute position detection means for specifying the position of mobile station 14. A control unit (CPU) 23 consisting of a microcomputer receives positioning data such as latitude and longitude data from the output of the GPS receiver 22, and converts it into a digital signal of a frequency suitable for wireless transmission, such as DTMF (Dual Tone Mu).
It has a built-in latitude/longitude data modulator, etc. that converts it into ltiFrequency) signals. The control means 23 has a storage means for storing positioning data and time data at that time, and for storing state data and time data indicating the state of the mobile station 14. These data are temporarily stored in a storage means and erased by transmitting the stored data to the command station 15. The various switches 24 and charge meter 25 that input the positioning data output from the GPS receiver 22 and the own station data are connected to the mobile station 1, for example.
If 4 is a taxi, there is a switch to select whether the vehicle is active or empty, a seat switch located in the back seat that is used to self-determine whether the vehicle is active or empty, an ignition switch that is used to determine if the vehicle is in operation, and a determination of whether late-night charges apply. Various switches 24 include rate changeover switches and the like used for this purpose. Note that the various switches 24 may include an ID code or the like for transmitting vehicle recognition data such as the car number of the mobile station 14 as a separately arranged code setting switch. Further, vehicle recognition data such as the car number of the mobile station 14 can also be written in a ROM constituting the control means 23. In this embodiment, it is assumed that the mobile station 14 is individually challenged by polling, and vehicle recognition data such as the car number of the mobile station 14 is not transmitted.

Such status data of the mobile station 14 itself is obtained by converting the positioning data obtained as the output of the GPS receiver 22 into a series of digital signals by the control means 23 and adding the status data of the own station to the positioning data. integrated, and sent to the transceiver 28 side via the switching means 27, and transmitted to the communication antenna 2.
9 sends it to the command station 15 as an electromagnetic wave. That is, command station 1
Due to the calling command signal such as a polling signal from 5,
Sends positioning data or, if necessary, status data and time data. Alternatively, voice communication, which will be described later, is performed as necessary.

The switching means 27 switches between the transceiver 28 and the microphone 32 or the speaker 3 by operating the transmission switch 30.
1 enables voice communication with the command station 15, and also sends positioning data, time data, and state data of its own station as output from the GPS receiver 22 to the transceiver 28. At this time, the transceiver 28 transmits radio waves to the command station 15 via the communication antenna 29. Note that normally, the switching means 27 guides the polling signal received by the transceiver 28 to the control means 23, where the content of the polling signal in response to the call from the own station is determined.

Next, the configuration of the command station 15 of the mobile station position reporting device according to the present embodiment shown in FIG. 2 will be explained.

In FIG. 2, an antenna 41 for communicating with the mobile station 14 is connected to a transceiver 40, similar to the mobile station 14 in FIG. A microphone 43 and a speaker 44 are connected. The transceiver 40 controls the connection of a microphone 43 and a speaker 44 for voice communication by switching the transmission switch 42 . Normally, the switching means 45 connects the transceiver 40 to the transmitter/receiver side of positioning data, and is connected to send a polling signal to the mobile station 14 within a specific range.

The switching means 45 is connected to a modem 46 comprising a modulator/demodulator and the like. The modem 46 stores positioning data obtained from the transceiver 40 in a positioning database 56 in memory via an interface (I/F) 47 and a main control unit (CPU) 48. On the other hand, the positioning data stored in the positioning database 56 is transmitted to the display means A5 for map display via the display control means 49.
Display on 1. At this time, the display control means 49 displays the ID code of the polling target and the position on the map read from the map database 50, in other words, the latitude and longitude point of the mobile station 14, on the screen of the display means A51. Convert to a signal. The main control means 48 includes all mobile stations 1
A positioning database 56 that stores positioning data and time data collected from all mobile stations 14, and a status database 57 that stores state data and time data that indicate the status of the mobile station 14 collected from all mobile stations 14 are connected. . These positioning database 56 and status database 57 constitute storage means on the command station 15 side of this embodiment. Furthermore, a map database 50 is connected to the main control means 48 via a display control means 49, which stores map data for outputting and displaying a map based on the positioning data on the screen of the display means A51. . The display control means 49 includes, in addition to a display means A51 for displaying a map, a display means B52 for a vehicle information list that clearly indicates the status of a vehicle, and a display means C53 for a vehicle dispatch list that clearly indicates the dispatch status of vehicles. is connected.

Further, the main control means 48 extracts predetermined requirements from the positioning database 56 and the status database 57, outputs the stored contents on the printer 58, and outputs the stored contents on the printer 58, the display means A51, the display means B52, the display means C53, it is possible to output details of the movement for each predetermined time interval that clearly shows how the driver moved during a predetermined period, for example, during the working hours of the day. It can be a daily report.

FIG. 4 is an explanatory diagram of an example of a daily taxi report printed out by the mobile station location reporting device according to an embodiment of the present invention.

In particular, in this embodiment, "garage", "station name", "region name", "company name" in high demand, etc. are assigned to a predetermined area from the positioning data, and the destination is displayed accordingly. For reference, positioning data directly on the map is also displayed.

[0025] This type of display means A51 and display means B
52. Switching of display contents of display means C53, printer 58
For switching the output contents, etc., the mode is selected by the operation switch 54.

In the normal automatic state, the main control means 48
performs individual polling of all mobile stations 14, receives time data and positioning data of all mobile stations 14, and state data as necessary, and stores them in a positioning database 56 and a state database 57. At this time, the display control means 49 reads a map based on the positioning data from the map database 50 and outputs and displays the map based on the positioning data on the screen of the display means A51, and displays the latitudes and information of all the mobile stations 14 thereon. Superimpose the ID code of the polling target and ● on the longitude point. At the same time, the display means B52 displays a vehicle information list that clearly indicates the status of the vehicle, and the display means C53 displays a vehicle dispatch list that clearly indicates the dispatch status of vehicles such as vehicles that have already been dispatched and vehicles that will be dispatched from now on to the customer. indicate.

[0027] Also, in the manual state, the transmission switch 4
By switching 2, the microphone 43 and speaker 44 for voice communication are connected alternately, and voice communication is performed with the mobile station 14 via the transceiver 40. In the mobile station 14, the microphone 3 for voice communication is switched by switching the transmission switch 30.
2 and the speaker 31 are connected alternately, and the transceiver 28
It communicates with the command station 15 via voice.

The mobile station location reporting device according to the embodiment of the present invention configured as described above operates as follows.

FIG. 5 is a flowchart of a program for controlling the mobile station 14 of the mobile station location reporting device which is an embodiment of the present invention.

First, in step S1 initialization is performed, in step S2 positioning data is read, and in step S3 it is determined whether a state change has occurred using the various switches 24.
When no state change has occurred, the timer is checked in step S7 to determine whether one minute has elapsed, and if the timer has not elapsed, the local station is called by polling in step S8. If the local station is not called by polling, the routine of steps S2, S3, S7, and S8 is repeatedly executed.

When it is determined in step S7 that one minute has elapsed on the timer, the timer is reset in step S5, and the positioning data and time data are written in the storage means built into the control means 23 in step S6. S
Repeat routine 8. Note that the 1-minute elapse of the timer at this time is the timing at which the positioning data is written into the storage means built into the control means 23, and this time limit depends on the memory capacity of the storage means built into the control means 23 and its output. It can be set arbitrarily depending on the purpose.

When it is determined in step S3 that a state change has occurred due to the various switches 24, the control means 23 stores the state data and time data in a built-in storage means in step S4. Then, in step S5, the timer is reset, and in step S6, the positioning data and time data are written in the storage means built in the control means 23, and the routine from step S2 to step S8 is repeated again.

When it is determined in step S8 that a call has been received by polling, in step S9 the control means 2
3 determines whether state data is stored in the built-in storage means, and if the state data is not stored in the storage means, in step S10, only the positioning data and the time data at that time are transmitted, and the state data is stored in the storage means. When the data is being stored, status data is added to the positioning data and time data and transmitted in step S11. Then, the routine from step S2 is repeatedly executed.

FIG. 6 is a flowchart of a program for controlling the command station 15 of the mobile station position reporting device which is an embodiment of the present invention.

Initialization is carried out in step S31, polling of a predetermined mobile station 14 is carried out in step S32, the arrival of positioning data is determined in step S33, and when positioning data has arrived, positioning database 5 is updated in step S34.
6 stores the positioning data and the positioning time data,
In step S35, it is determined whether the status data has arrived, and when the status data has arrived, the status data and time data are stored in the status database 57 in step S36. and,
The map read from the map database 50 in step S37 and the location on the map include the ID code of the polling target and
convert it into a signal to be displayed and synthesize them. and,
It is determined in step S38 whether printout is requested, and if printout is not requested, display is performed on display means A51, display means B52, and display means C53 in step S39, and if printout is requested. Then, in step S40, the printer 58 is used to print out. Please note that this printout is
By setting a predetermined condition using the operation switch 54, the selected form is output.

FIG. 7 is a flowchart of a program for printing by a mobile station location reporting device which is an embodiment of the present invention.

This program is independently processed by the printing function built into the main control means 48 using the operation switch 54.

First, initialization is performed in step S51, and it is determined in step S52 whether predetermined conditions have been set using the operation switch 54. When predetermined printout conditions have been input, the stored conditions are determined in step S53. The time data, positioning data, and status data are read and printed in step S54 to obtain the printed output shown in FIG. 4.

As described above, in the mobile station location reporting device of this embodiment, the mobile station 14 determines a change in the status of its own station in step S3, and stores the status data together with the time data in step S4. and step S4, and a step in which the mobile station 14 determines its own position in step S2 at predetermined time intervals set in step S7, and stores the positioning data in step S6. When the position determination means consisting of S2, Step S7, and Step S6 and the call from the command station 15 is determined in step S8, the process from the time when the previous call was received until the time when the call from the command station 15 is received this time is performed. When it is determined in step S9 that there has been a change in status, the status data and time data stored during that time are transmitted to the command station 15 in step S11, and in step S9 it is determined that there is no status data. In this case, the apparatus includes a transmitting means for transmitting the positioning data and the time data thereof, and this can be an embodiment of the invention of claim 1.

Therefore, in response to a call from the command station 15 by polling or the like, if no change in status has occurred in the mobile station 14, the positioning data and time data will be transmitted, and subsequent status data transmission will not be necessary. Therefore, even if radio waves of one specific frequency are allocated, the proportion of the communication time by voice can be increased in a device that performs voice communication and data transmission. Furthermore, especially in the case where positioning data and time data at the time of positioning are stored at one-minute intervals as in this embodiment, the polling interval can be made longer. Conversely, when the polling interval is shortened, there is no need to store time data at the same time as the positioning data, and the time corresponding to the positioning data can be approximately equal to the polling time. In other words, the transmitting means when implementing the present invention responds to the call from the command station only when there has been a change in status from the time the previous call was received until the time when the current call was received from the command station. , and transmits the state data and time data stored therein to the command station, and transmits positioning data when there is no state data.

[0041] Furthermore, the mobile station location reporting device of this embodiment is as follows:
The mobile station 14 determines a change in the state of its own station in step S3,
In step S4, the state change determination means consisting of step S3 and step S4 stores the state data together with the time data, and at every predetermined time interval set in step S7, the mobile station 14 determines the position of the own station in step S2. The position determination means consists of step S2, step S7, and step S6, which determines the positioning data and stores the positioning data in step S6, and when the call from the command station 15 is determined in step S8, the position determination means stores the positioning data in step S6. Since receiving it, this command station 1
If it is determined in step S9 that there has been a change in the state before receiving the call from No. 5, the state data and time data stored during that time are transmitted to the command station 15 in step S11, and the state When it is determined that there is no data, a transmitting means transmits the positioning data and its time data; a positioning database 56 on the command station 15 side that stores the positioning data and status data and outputs it as necessary; A storage means consisting of a status database 57 is provided, and this can be an embodiment of the invention of claim 2.

Therefore, in this embodiment, in addition to the embodiment of the invention of claim 1, the output of the mobile station 14 to be managed can be made visible on a display such as a CRT by the storage means on the command station 15 side. The information can be displayed on the screen or output as a hard copy using the printer 58 or the like.

[0043]The mobile station location reporting device of this embodiment includes step S3 and step S3 in which the mobile station 14 determines a change in the status of its own station in step S3, and stores the status data together with the time data in step S4. a step S2 in which the mobile station 14 determines its own position in step S2 and stores the positioning data in step S6 at predetermined time intervals set in step S7; When the position determination means consisting of steps S7 and S6 and the call from the command station 15 is determined in step S8, the state from the time of receiving the previous call to the time of receiving the call from the command station 15 this time If it is determined in step S9 that there has been a change, the state data and time data stored during that time are transmitted to the command station 15 in step S11, and when it is determined in step S9 that there is no state data, From a transmitting means that transmits only the positioning data and its time data, and a positioning database 56 and a status database 57 on the command station 15 side that stores the time data, positioning data, and status data and outputs them as necessary. This can be an embodiment of the invention according to claim 3.

Therefore, since time data is added to various data of the mobile station, it is possible to track the past movement of the mobile station 14 even if the timing interval between polling or the like from the command station 15 is long. If radio waves of one frequency are allocated for voice communication and data transmission, the proportion of voice communication time can be increased.

Furthermore, the status data stored in the status change determining means of the above embodiment can be data on empty or actual cars and data on toll meters. With this type of system, a record similar to a daily report of a taxi can be recorded on the command station 15 side.

By the way, the state change determination means for determining the state change of the own station and storing the state data in the above embodiment is for determining the state change of the own station based on changes in the various switches 24. When implementing the present invention, various sensors, measuring instruments, and switches can be targeted.

Furthermore, although the GPS receiver 22 is used as the position determining means for determining the position of the own station at predetermined time intervals and storing the positioning data in the above embodiment, the present invention may also be implemented. In this case, a receiver using electromagnetic waves other than a satellite, a range finder and a direction determining means possessed by a mobile station can be used.

The transmitting means in the above embodiment is composed of the control means 23, the switching means 27, and the transceiver 28, but when carrying out the present invention, dedicated positioning data and/or status data are transmitted. It can be a dedicated transceiver or a transmitter.

[0049]

As described above, in the mobile station location reporting device according to the first aspect of the invention, the mobile station determines a change in the state of its own station, stores the state data together with the time data in the state change determination means, and Further, the position of the own station is determined at predetermined time intervals, and the positioning data is stored in the position determining means. and,
When a command station issues a polling call to each mobile station, the mobile station that received the call will check its status from the time it received the previous call to the time it received the current call from the command station. Only when there is a change, the status data and time data stored during that time are transmitted to the command station, and when there is no status data, positioning data is transmitted.

[0050] Therefore, in response to a call from the command station, if there is no change in the status of the mobile station, the positioning data will be transmitted, and there is no need to transmit subsequent status data. By allocating radio waves, it is possible to increase the proportion of voice communication time in a device that performs voice communication and data transmission.

[0051] The mobile station location reporting device of the invention of claim 2 comprises:
In the structure of claim 1, since the positioning data and status data sent from the transmitting means are stored in the storage means on the command station side, the data of a specific mobile station can be displayed on the command station side as necessary. The data can be outputted by a means such as a computer and/or a printer, and the work of the mobile station can be managed. In addition, if the status data, positioning data, and time data are retrieved from the storage means, the position of the mobile station at each predetermined time interval and the state at that time can be determined. Since the situation at that time can be clarified, it is possible to obtain study materials such as the working conditions of drivers and the efficiency of transportation facilities.

[0052] The mobile station location reporting device of the invention of claim 3 comprises:
The mobile station determines a change in the status of its own station and sends the status data together with the time data to the status change determination means, and also determines the position of its own station at predetermined time intervals and sends the positioning data together with the time data to the position determination means. Remember it. On the mobile station side, each mobile station is contacted by polling, and only if there is a change in status from the time the previous call was received until the current call from the command station is received, the data is stored during that time. The status data, time data, and positioning data between them are transmitted to the command station, and when there is no status data, only the positioning data and time data are transmitted, and the command station that has received it transmits it from the transmitting means. The time data, positioning data, and status data thus obtained are stored in a storage means, and are outputted by a display means, a printer, etc. as necessary.

[0053] Therefore, since time data is added to various data of the mobile station, it is not easily influenced by the timing interval of calls by polling of the command station, etc., and it is possible to track the past movement of the mobile station. If radio waves of two frequencies are allocated for voice communication and data transmission, the proportion of voice communication time between them can be increased.

[0054] The mobile station location reporting device of the invention of claim 4 includes:
If the status data stored in the status change determination means includes empty or actual vehicle data and fare meter data, a record similar to a daily taxi report can be recorded at the command station side. The driver does not have to take the trouble of keeping a daily report, and the control station can manage money, making it less likely that troubles due to money problems will occur.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a mobile station of a mobile station location reporting device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a command station side of a mobile station position reporting device that is an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a schematic configuration showing the relationship between a mobile station and a command station of a mobile station location reporting device according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram of an example of a daily taxi report printed out by the mobile station location reporting device according to an embodiment of the present invention.

FIG. 5 is a flowchart of a program for controlling a mobile station of a mobile station location reporting device that is an embodiment of the present invention.

FIG. 6 is a flowchart of a program for controlling a command station of a mobile station position reporting device according to an embodiment of the present invention.

FIG. 7 is a flowchart of a program for printing a RAM card of a mobile station location reporting device according to an embodiment of the present invention.

[Explanation of symbols]

14 Mobile station 15 Command station 23 Control means 28, 40 Transceiver 48 Main control means 51 Display means A 52 Display means B 53 Display means C 56 Positioning database 57 Status database 58 Printer

Claims (4)

[Claims] Claims: 1. A state change determination means for a mobile station to determine a change in its own state and store the state data together with time data; a mobile station for determining the position of its own station at predetermined time intervals; a position determining means for storing the positioning data;
In response to a call from a command station, only when there is a change in status from when the previous call was received to when the current call is received from the command station, the status data and time data stored during that time are stored. A mobile station position reporting device comprising: transmitting means for transmitting positioning data to the command station and transmitting positioning data when there is no status data. 2. A mobile station position reporting device according to claim 1, further comprising a storage means on the command station side that stores the positioning data and status data and outputs them as necessary. Mobile station location reporting device. 3. A state change determining means for a mobile station to determine a change in its own state and store the state data together with time data; a mobile station for determining the position of its own station at predetermined time intervals; The position determination means stores the positioning data together with the time data, and the state changes in response to the call from the command station from the time the previous call was received until the time the call was received from the command station this time. transmitting means for transmitting the state data, time data, and positioning data stored during that period to the command station only when the state data is present, and transmitting only the positioning data and the time data when there is no state data; 1. A mobile station position reporting device comprising: storage means on a command station side that stores positioning data and status data and outputs them as necessary. 4. The state data to be stored in the state change determination means includes data of an empty vehicle or an actual vehicle and data of a toll meter. Mobile station location reporting device.