JP3168491B2 - Mobile station position monitoring system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile station position monitoring system for constantly ascertaining the position of a mobile station such as a vehicle at a base station and managing the operation of the mobile station. However, the present invention is not limited to the case where the position is moved with time.

[0002]

2. Description of the Related Art Conventionally, an AVM (Automatic Vehicle Monitoring) system has been used as a mobile station position monitoring system.
System) is known. In the AVM system, the position and activity status (actual, empty, or working) of a mobile station such as a running vehicle is automatically collected by a base station such as an operation management center using radio waves, and the base station is used as the base station. Is a system that can always be grasped. Here, when an emergency occurred on the vehicle side such as an emergency car such as a patrol car or a cash transport vehicle, the crew member reported to the base station by pressing an emergency switch provided on the vehicle. .

[0003]

When a situation occurs in which the emergency switch cannot be pressed due to reasons such as being escaped from the vehicle or being watched by a pirate, the vehicle can inform the base station. There was a problem that it was not possible. Also, in a mobile station such as a security patrol car, even if a crew member finds an abnormality while leaving the mobile station and patrols a building or the like, the base station notifies the base station that it does not return to the mobile station or searches for a telephone. There was a problem that it was not possible.

Accordingly, the present invention has been made to solve such a problem, and when an emergency occurs, the emergency can be reported to the base station together with the position of the mobile station even if the user is away from the mobile station. The task is to provide a mobile station location monitoring system.

[0005]

SUMMARY OF THE INVENTION A mobile station position monitoring system according to the present invention comprises a portable transceiver communicable with the mobile station when the mobile station is in a short distance from the mobile station, and the mobile station communicates with the portable transceiver. small power transmitting and receiving means performs, the positioning means for calculating the position of the mobile station, the mobile station communication means for transmitting data relating to the position of the resulting said mobile station in the previous SL positioning unit to the base station, the low power transceiver unit Data on the emergency from the portable transceiver received at
Or communication between the portable transceiver and the low power transceiver
A mobile station having data generation means for generating data for transmitting the position and emergency of the mobile station from the mobile station communication means to the base station based on the state .

[0006]

According to the present invention, when a data transmission request from a base station is received, if there is a change in the data relating to the activity, the data relating to the location of the mobile station and the data relating to the activity are transmitted to the base station by the mobile station communication means. Sent. Separately from this, when the mobile station is at a short distance from the mobile station, communication from the portable transceiver communicable with the mobile station is received by the low power transmitting / receiving means of the mobile station. When the communication from the portable transceiver is received by the mobile station, the received content or reception state is determined, and the mobile station communication means is determined based on the data based on the determination and the data on the position of the mobile station obtained by the positioning means. Generates data to be transmitted to the base station. For this reason,
If it is a short distance away from the mobile station, if a mobile transceiver is used, the occurrence of an emergency or the like on the mobile station side via the mobile station is immediately reported to the base station together with the position of the mobile station. . In addition, if the distance between the mobile transceiver and the mobile station becomes too long to the extent that the reception status of the low power transmission / reception means on the mobile station for communication from the mobile transceiver deteriorates, a similar emergency situation may occur on the mobile station side. Therefore, the mobile station promptly notifies the base station together with the location of the mobile station.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to specific embodiments.

FIG. 1 is an overall configuration diagram showing a mobile station position monitoring system according to an embodiment of the present invention. In the present embodiment, a case will be described in which a mobile patrol vehicle or a cash transport vehicle as a vehicle is used as a mobile station, and a vehicle base of the security patrol vehicle or the cash transport vehicle is used as a base station.

In FIG. 1, 1 is a base station, 2 is a base station 1
A mobile station that communicates with Reference numeral 32 denotes a portable transmitter / receiver including a low-power wireless device suitable for carrying. In the mobile station 2, reference numeral 27 denotes a positioning means for calculating the position of the mobile station 2, and reference numeral 21 denotes data on the position and activity of the mobile station 2 obtained by the positioning means 27, to the base station 1, and from the base station 1. Transmitting and receiving means for achieving a mobile station communication means for receiving a data transmission request by polling or the like;
2 is a low-power transmitting / receiving means for receiving communication from the communication device 2. Reference numeral 22 denotes the content received by the low power transmitting / receiving means 29 and the mobile station 2.
Is a controller that achieves data generation means for transmitting data on the position of the base station to the base station 1.

In the base station 1, reference numeral 11 denotes a transmitting / receiving means for transmitting a data transmission request to the mobile station 2 and receiving data transmitted from the mobile station 2. Reference numeral 13 denotes display means for displaying data from the mobile station 2 received by the base station 1. Reference numeral 12 denotes a controller that controls the base station 1.

The base station 1 is used for commercial radio or MCA (Mult
i Channel Access) has a transmitting / receiving means 11 composed of a wireless transmitting / receiving device and the like and an antenna 10 thereof. The controller 12 connected to the transmission / reception means 11 includes an input means 15 including a keyboard, a display means 13 including a CRT display device, a printing means 17 including various printers, a map database. 18 and a customer database 19 are connected. The controller 12
GPS (Global) to improve the location accuracy of mobile station 2
Positioning System) GPS composed of receivers
The receiving means 14 and its antenna 16 are connected.
The mobile station 2 has a transmitting / receiving means 21 composed of a commercial radio or MCA radio transceiver and the like and an antenna 20 thereof. The controller 22 connected to the transmission / reception means 21
Has GPS receiving means 24, its antenna 25 and GPS
Positioning means 27 which complements the above, storage means 23 comprising a detachable CD-ROM device or the like, display means 26 comprising a liquid crystal display device or the like, and an interface box which can be extendedly attached to various devices 28 are connected. The interface box 28 is connected to a low-power transmitting / receiving means 29 composed of a low-power wireless device or the like and an antenna 31 thereof. Also, the crew of the mobile station 2
A portable transceiver 32 composed of a small-sized low-power wireless device or the like paired with the low-power transmitting / receiving means 29 of the mobile station 2 and its antenna 33 are carried.

Here, normally, on the mobile station 2 side, G
The PS receiving means 24 receives radio waves from a plurality of communication satellites 30 with the antenna 25, and calculates the current position of the mobile station 2 by the positioning means 27 via the controller 22. The plurality of communication satellites 30 are artificial satellites that output a frequency for positioning, and measure the position of a mobile station from the positions of the satellites. As is well known, three or more satellites are required to obtain positioning data. Satellites are used. As shown in FIG. 1, the mobile station 2 of this embodiment receives radio waves from three communication satellites 30 and calculates the distance between each communication satellite 30 and the mobile station 2 from the propagation time of the radio waves. . Each communication satellite 30 operates in a predetermined orbit orbiting the earth, and calculates the position of the mobile station 2 on the earth from the position and distance of each communication satellite 30 in the orbit to specify the position. The detection error is usually about 100 m. In this way, the mobile station 2 obtains the latitude / longitude data, that is, the data on the position, by the positioning means 27.

The controller 12 of the base station 1 transmits a data transmission request code from the transceiver 11 to the mobile station 2 via the antenna 10 in order to collect data on the position of the mobile station 2 at regular time intervals. When the transmission / reception means 21 of the mobile station 2 receives the data transmission request code via the antenna 20, the controller 22 of the mobile station 2 automatically transmits low power transmission / reception means 29 or the like connected to the interface box 28 as data relating to the activity status. And the data on the current position obtained by the positioning means 27 are read. The content or state of reception of these data is determined by the controller 22, that is, if it is determined from the content of reception or the state of reception that the data is data relating to an emergency, the transmission / reception means 21 informs the base station via the antenna 20 of this fact. 1 is sent. When the base station 1 receives the data on the emergency and the position of the mobile station 2, the controller 12 converts the data on the position of the mobile station 2 into map coordinates, and displays the position of the mobile station 2 together with the map on the display means 13. Will be displayed. In addition, data relating to the emergency of the mobile station 2 is also converted at the same time and displayed on the display unit 13.

Next, the mobile station 2 used in this embodiment
The processing procedure of the controller 22 will be described based on the flowchart of FIG.

First, initialization is performed in step S1, and the process proceeds to step S2, where it is determined whether there is a data transmission request from the base station 1. If there is a data transmission request in step S2, the process proceeds to step S3, where data relating to the position and activity of the mobile station 2 is transmitted to the base station 1. On the other hand, if there is no data transmission request in step S2, the process proceeds to step S4, and it is determined whether or not the activity status in the mobile station 2 has changed. If there is a change in the activity status of the mobile station 2 in step S4, the process moves to step S3 and the same processing is executed. On the other hand, if there is no change in the activity status of the mobile station 2 in step S4, or after the processing in step S3, the process proceeds to step S5.

In step S5, it is determined whether data is transmitted from the portable transceiver 32. Step S5
If no data is transmitted from the portable transceiver 32, the process returns to step S2 and the same processing is repeatedly executed. On the other hand, if there is data transmission from the portable transceiver 32 in step S5, the process proceeds to step S6, and it is determined whether or not the transmission data is data indicating an emergency. If it is determined in step S6 that the data does not indicate an emergency, the process returns to step S2, and the same processing is repeatedly performed. On the other hand, if it is determined in step S6 that the data indicates an emergency, the process proceeds to step S7, where the position of the mobile station 2 and the emergency signal are transmitted to the base station 1. Next, the process proceeds to step S8, and it is determined whether an emergency release signal from the base station 1 for releasing the emergency signal based on the process of step S7 has been received. In step S8, the processing of steps S7 and S8 is repeatedly executed until an emergency release signal is received, and when the emergency release signal is received, this program ends.

Here, when a crew member of the mobile station 2 is attacked by a thief, there is a case where the crew member is threatened to be dropped off the mobile station 2 or evacuated from the mobile station 2. Can be In such a case, the crew cannot be pressed by the emergency switch (not shown) provided in the mobile station 2 and the emergency notification to the base station 1 is delayed. In such a case, the crew of the mobile station 2 carries the portable transceiver 32 of the present embodiment, and by operating the switch of the portable transceiver 32 in an emergency as described above, the portable transceiver 32 The occurrence of an emergency can be communicated to the controller 22 via the low-power transmitting / receiving means 29 mounted on the mobile station 2 which is not so far away.
When the controller 22 reads a signal indicating the occurrence of an emergency, it transmits an emergency signal to the base station 1 via the transmission / reception means 21 together with data on the current position of the mobile station 2 without being informed by the crew of the mobile station 2. I do. These data are displayed on the display means 13 of the base station 1. As a result, the base station 1 can know the occurrence of an emergency in the mobile station 2 more quickly than before, so that the base station 1 can respond more accurately.

The portable transceiver 32 is carried by the crew of the mobile station 2 and does not exceed the communication distance with the low-power transmitting / receiving means 29 mounted on the mobile station 2 on a normal security patrol route. And Here, the portable transceiver 32
When the communication distance between the low power transmission / reception means 29 and the low power transmission / reception means 29 exceeds the communication distance, the reception state of the low power transmission / reception means 29 deteriorates. In this case, it is conceivable that some emergency may occur in the crew of the mobile station 2 carrying the portable transceiver 32. As described above, when the controller 22 detects the deterioration of the reception state of the low power transmission / reception unit 29 with the portable transceiver 32, the mobile station transmits the pseudo station to the base station 1 via the transmission / reception unit 21 as a pseudo signal indicating that an emergency has occurred. An emergency signal notifying the reception condition deterioration is transmitted together with the data on the current position of No. 2. These data are displayed on the display means 13 of the base station 1. That is, even in a state where the crew carrying the portable transceiver 32 cannot operate the switch of the portable transceiver 32 in an emergency, the occurrence of an emergency is notified only by exceeding a predetermined communicable distance. be able to. As a result, the base station 1 can know the occurrence of an emergency in the mobile station 2 more quickly than before, so that the base station 1 can respond more accurately.

As described above, the mobile station position monitoring system according to the embodiment of the present invention is a mobile station position monitoring system having the mobile station 2 and the base station 1 that communicates with the mobile station 2. When the distance is equal to or less than a predetermined distance, a portable transceiver 32 communicable with the mobile station 2, a small power transmitting / receiving means 29 provided in the mobile station 2 for communicating with the portable transceiver 32, Positioning means 27 for calculating the position of the mobile station 2, and communication from a portable transceiver 32 provided for the mobile station 2 and achieving portable communication means, and transmitting data from the base station 1. When receiving the request, if there is a change in the data relating to the activity status, a mobile station communication means for transmitting the data relating to the position of the mobile station 2 obtained by the positioning means 27 and the data relating to the activity status to the base station 1 is achieved. The transmission / reception means 21 and the reception content or reception state of the communication from the portable transceiver 32 which is provided in the mobile station 2 and received by the low power transmission / reception means 29 are determined, and the data based on the determination and the positioning means 27 are obtained. And a controller 22 for achieving data generation means for generating data to be transmitted to the base station 1 by the transmission / reception means 21 for achieving mobile station communication means from data on the position of the mobile station 2 obtained.

Therefore, the mobile station 2 receives the radio wave of the communication satellite 30 by the GPS receiving means 24 and
The current position is calculated by the positioning means 27, and the data on the position and the activity status is transmitted from the mobile station 2 by the transceiver 21 in response to the data transmission request of the base station 1. Transmitted to the base station.
When the communication from the portable transceiver 32 is received by the low power transmission / reception means 29 of the mobile station 2, the received content or the reception state is determined. Here, the portable transceiver 32
It is determined whether the contents received from the mobile station indicate an emergency or whether the distance between the portable low-power transceiver 32 and the mobile station 2 is too large and the reception state on the mobile station 2 side has deteriorated to a predetermined level or more. If there is a possibility of occurrence of an emergency or the like as a result of this determination, data indicating the fact is immediately sent from the mobile station 2 to the base station 1 together with the position of the mobile station 2.

Therefore, even if the mobile station 2 encounters a burglary or the like in a cash transport vehicle and gets out of the vehicle or is in a state where the emergency switch attached to the vehicle cannot be pressed, the crew is carrying the mobile station. By using the portable transceiver 32, the occurrence of an emergency can be immediately transmitted to the base station 1 via the vehicle which is the mobile station 2. In addition, for example, in the case of a security patrol car, when the mobile station 2 finds an abnormality while leaving the vehicle and patrol the building, the mobile station 2 carries the cell phone without searching for a telephone or returning to the vehicle. By using the portable transceiver 32, the occurrence of an emergency can be immediately transmitted to the base station 1 via the vehicle which is the mobile station 2.

By the way, the positioning means 27 of the mobile station 2 in the above embodiment receives the radio wave from the communication satellite 30 by the GPS receiving means 24 via the antenna 25 and calculates the current position. The positioning means may be achieved by a configuration in which the positioning operation program is built in the controller 22 connected to the controller 24. Further, in the above embodiment, the processing of the controller 22 when transmitting a data transmission request from the base station 1 and responding from the mobile station 2 has been described. However, even when the activity status changes on the mobile station 2 side, Each time, processing is performed so that data on the activity status is transmitted to the base station 1 together with data on the location. Further, in the above embodiment, the portable transceiver 32 is used as the communication means, but the communication means is not limited to wireless, and may transmit an emergency using infrared rays or ultrasonic waves. .

[0023]

As described above, the mobile station position monitoring system of the present invention provides a portable transceiver capable of communicating with a mobile station when the distance to the mobile station is less than a predetermined distance. Low power transmitting and receiving means for performing communication and the above
The mobile station obtained by positioning means for calculating the position of the mobile station
Mobile station transmitting data on the location of the mobile station to the base station.
Communication means, and the portable device received by the low power transmission / reception means.
Emergency data from the band transceiver, or
Based on the communication status between the portable transceiver and the low power transceiver
The location of the mobile station and the emergency
A data generator for generating data to be transmitted to the base station from the stage
Mobile station having a means for generating the same, even if it is impossible to press the emergency switch arranged on the mobile station side away from the mobile station by analogy, the mobile transceiver to the mobile station If communication is possible, there is an effect that occurrence of an emergency or the like can be promptly transmitted to the base station side via the mobile station. Furthermore, when the same emergency switch cannot be pressed and the communication condition from the portable transceiver to the mobile station deteriorates, the possibility of occurrence of an emergency or the like can be promptly notified to the base station by the determination of the mobile station. It has the effect of being able to communicate.

Further, when the same emergency switch cannot be pressed and the communication condition from the portable transceiver to the mobile station is deteriorated, the possibility of occurrence of an emergency or the like is determined based on the judgment of the mobile station. There is an effect that can be quickly transmitted to.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a mobile station position monitoring system according to one embodiment of the present invention.

FIG. 2 is a flowchart showing control of a mobile station in the mobile station position monitoring system according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base station 2 Mobile station 11 Transmitting / receiving means 12 Controller 21 Transmitting / receiving means 22 Controller 27 Positioning means 29 Low power transmitting / receiving means 32 Portable transceiver

Continuation of the front page (56) References JP-A-4-229729 (JP, A) JP-A-4-306799 (JP, A) Japanese Utility Model Application Sho 61-128153 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) G08G 1/123 G01C 21/00

Claims (1)

(57) [Claims] 1. A mobile station position monitoring system having a mobile station and a base station communicating with the mobile station, wherein when the distance to the mobile station is less than or equal to a predetermined distance, portable transmission / reception communicable with the mobile station. machine and small power transmitting and receiving means communicating with the portable transceiver, the mobile to transmit the positioning means for calculating the location of the mobile station, the data relating to the position of the resulting said mobile station in the previous SL positioning unit to the base station Station communication means, data relating to an emergency from said portable transceiver received by said low power transmission and reception means ,
Or communication between the portable transceiver and the low power transceiver
A mobile station having data generation means for generating data for transmitting the position and emergency of the mobile station from the mobile station communication means to the base station based on the state. .