JP3093425B2 - Mobile station paging control system in AVM system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AVM system for use in a taxi radio dispatching business, and more particularly, to a mobile station for efficiently calling a mobile station satisfying a certain condition in order to execute a specific service function. It relates to improvement of a call control system.

[0002]

2. Description of the Related Art FIG. 6 is a diagram showing a general system configuration of an AVM system used for a taxi radio dispatching business.
In FIG. 6, a base station 1 includes a district A, a district B, a district C,.
Mobile stations 101 and 10 moving in the area for
.. Are sequentially polled, and various information on the position and the like collected from each of the mobile stations 101, 102,. Are managed in such a manner that the mobile stations are arranged in a certain priority order and displayed.

[0003] The data collected by this polling is used, for example, for service operations such as vehicle allocation. Normally, in this dispatching operation, a method is employed in which the base stations 1 specify the mobile stations in the area in the area where the dispatch is intended based on the display data in order of the priority and sequentially call the stations individually. ing. In general, the called mobile station also responds unconditionally to the call.

According to this method, when the base station 1 calls the mobile station 103 having the highest priority in the area from the base station 1 for the purpose of dispatching the area A, for example, based on the past collected data,
When the mobile station 103 has already moved to the area B, a call with the mobile station 103 is established in the area B. However, since the mobile station 103 does not exist in the area A, the dispatch in the area A is performed. Cannot be performed. Therefore, at this time, if the vehicle is to be dispatched in the area A, the base station 1 again refers to the past collected data, specifies the next highest priority mobile station 102 in the area A, and identifies this as the above. Had to be called through an operation.

In other words, in this type of conventional mobile station paging control method, when there is a mobile station whose condition has changed with respect to the data at the time of calling based on past collected data, the relevant condition is determined. Repeated paging operations to call another mobile station that satisfies are required, which not only inconveniences the first called mobile station, but also complicates the operation of calling the mobile station at the base station, and above all, There was a problem that the efficiency of radio waves was reduced.

[0006]

As described above, in the conventional AVM system, when a base station calls a mobile station satisfying a certain condition (for example, a specific area, etc.), the base station side obtains past collected data. Based on the above, the mobile stations satisfying the above conditions are individually called in the order of their priorities, and the mobile station side simply responds unconditionally to the calls. If the conditions change for the past collected data during, the call will be in a different state than desired,
When trying to call another mobile station that satisfies the initial desired conditions, the same calling operation as described above must be repeated three times, which causes a problem that the usability is deteriorated and the radio wave use efficiency is lowered.

[0007] The present invention eliminates this problem, and if a mobile station called according to the priority has changed the condition with respect to past collected data, a call with this mobile station is made unnecessarily. Avoid and immediately call another mobile station that satisfies the original conditions automatically without the need for complicated operations on the base station side. For specific service functions,
A that is easy to use and contributes to efficient use of radio waves
An object of the present invention is to provide a mobile station paging control method in a VM system.

[0008]

According to the present invention, various information collected from each mobile station in accordance with an instruction from a base station is totaled and stored in a certain priority order, and the totalized data is used as necessary. In an AVM system capable of individually calling a desired mobile station from a base station, when calling a mobile station that satisfies a certain condition based on past aggregated data, a mobile station of a certain priority that satisfies the condition is called from the base station. Is called by an individual call signal to which condition information defining the condition is added, and the mobile station that has received the conditional individual call determines whether or not the own station satisfies the condition based on the condition information. A negative acknowledgment is sent to the base station, and the base station responds to the call with the mobile station only when an acknowledgment is received, and communicates with the mobile station when a negative acknowledgment is received. The is obtained characterized by repeatedly performing the same conditional individual calling the lower priority mobile station in the same conditions as the target to the priority order without.

[0009]

According to the present invention, when a mobile station satisfying a certain condition based on past collected data is called according to its priority,
The base station calls, for example, the highest priority mobile station in the mobile station group that satisfies the above conditions by using an individual call signal to which condition information indicating the above conditions has been added. The called mobile station checks its own conditions in light of the above condition information, and sends an acknowledgment or a negative response to the base station depending on whether or not the own station satisfies the designated condition. I do.
Thereafter, if the base station receives an acknowledgment from the calling mobile station, it responds to the call with the mobile station. To make a call similar to the above to a mobile station having a lower priority.

By repeating the above call control until an acknowledgment is obtained from the mobile station or there is no mobile station to be called, or by repeating a predetermined number of times in the order of priority, the control with the mobile station that does not satisfy the specified condition is performed. While avoiding a call, it is possible to automatically connect to the highest priority mobile station that satisfies the original desired conditions among the remaining mobile stations. At that time, since all repetitive calls caused by mismatch of conditions are automatically controlled, the base station only needs to perform the first operation of calling the highest priority mobile station that satisfies a certain condition based on past collected data. For a specific service function that calls a mobile station from a base station under a certain condition and executes the service, a complicated operation is not required, and the efficiency of radio wave operation can be improved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of a base station side of an AVM system according to the present invention, and a computer 2 is connected to a base station 1. The base station 1 includes a radio unit 11, a call circuit 12, a microphone 13, a speaker 14, and a data transmission / reception unit 15. The computer 2 includes an interface unit 21, a control unit 22, a memory unit 23, and a display unit 24. , An operation unit 25.

An outline of the operation when polling each mobile station from the base station side in the AVM system of the present invention will be described with reference to FIG.

First, in response to a polling request generated on the base station side, the operator instructs the operation section 25 of the computer 2 to start polling. Based on this command, the control unit 22 generates a polling request signal, and sends the polling request signal from the base station 1 through the interface unit 21, the data transmission / reception unit 15, and the radio unit 11.

On the other hand, each mobile station that has received the polling request signal transmits to the base station 1 various information on the own station including, for example, its moving position in the time slot assigned to the mobile station. .

Thereafter, the base station transfers information received from each mobile station to the control unit 22 of the computer 2 through the radio unit 11 and the data transmission unit 15. Here, the control unit 2
2 statistically processes the information received from each of the mobile stations, stores the processing result as polling data in the memory unit 23, and displays it on the display unit 24.

FIG. 2 shows an example of the display of the polling data on the display section 24. According to the display of FIG.
3 is moving, and the polling result that the priority is higher in the order of the mobile stations 103, 102, and 101 can be determined.
This display corresponds to the statistical processing result of the control unit 22 based on the information received from each mobile station described above, and is updated every time the polling operation is performed.

Next, for example, an operation for calling a mobile station from the base station 1 to the designated area based on the display data on the display section 24 for the purpose of dispatching a taxi to a designated area, etc. 3 and a flowchart shown in FIG. The control operation on the base station side relating to the area designation call is performed according to the flowchart shown in FIG.

First, in order to start a service such as taxi dispatching by designating a certain area as described above, the base station side refers to the display data on the display unit 24 and checks the target area and the area. It is necessary to perform a district designation paging operation that designates the mobile station with the highest priority.

In order to realize this operation, for example, a method of designating and inputting a target district and a mobile station from the operation unit 25 of the computer 2 or a display unit 24 (see FIG. 2)
A touch input method can be considered by directly touching the display data of the highest priority mobile station in the target area on the display surface of the user.

On the base station side, the control unit 22 of the computer 2 monitors the operation status, and when it recognizes that the area designation calling operation has been performed (S301YE).
S) After specifying the highest-priority mobile station in the area designated by the above operation based on the polling data stored in the memory unit 23 up to that time (S302), the mobile station The base station 1 is controlled so as to transmit the individual call signal to which the area designation information is added (S303).

After transmitting the individual call signal, the control unit 22 controls the radio unit 11 and the data transmission / reception unit 15 of the base station 1.
It monitors whether or not a response signal has been received from the mobile station that made the call through (S304). Here, when a response signal from the mobile station is received (S3
04YES), then, the control unit 22 determines whether it is a positive response or a negative response (S305). In addition,
The response operation on the mobile station side at this time will be described later.

If a negative response is determined, the control unit 22 checks again whether another mobile station exists in the original destination area based on the polling data in the memory unit 23 again ( If no other mobile station is present (S306), the calling operation is terminated.

On the other hand, if there is another mobile station in the initially targeted area (S306 YES), then the control unit 22 determines whether or not a predetermined number of calls has been reached (S307). If not, the mobile station having the next highest priority among the mobile stations is specified (S308).
Thereafter, returning to the processing of S303 and thereafter, the individual paging of the mobile station is executed by the individual paging signal including the area designation information in the same manner as in the case of calling the mobile station of the highest priority. If the predetermined number of calls has been reached in S307, the calling operation is immediately terminated.

While such individual paging control is being performed for all mobile stations in the target area, S30
When an acknowledgment is received from the mobile station No. 5, the control unit 22 connects to the mobile station via a wireless line (S309) and performs a telephone call (S310). By giving some instructions to the mobile station, which is the destination of the call, by this call, the dispatching service in the original destination area can be realized.

The process for acknowledgment or negative acknowledgment on the mobile station side with respect to the above-mentioned area designation call on the base station side is performed according to, for example, a flowchart shown in FIG.

First, the mobile station monitors whether or not the above-mentioned individual paging signal has been received from the base station (S401). Here, when the individual paging signal is received (S401 YES), the mobile station immediately checks the area where the mobile station is moving (S402), and then the current area of the mobile station and the area in the individual paging signal. It is determined whether the specified information matches (S403).

Here, when the mobile station moving area and the area designation information do not match (S403 NO), this mobile station sends a negative response to the base station side (S404). On the other hand, when the own station moving area and the area designation information match (S403YE
S), the mobile station sends an acknowledgment to the base station (S405). Thereafter, the mobile station performs the processing in S310.
(S406).

As described above, according to the present invention, when a service operation limited to a certain area is performed, the highest priority mobile station of the target area is determined by a call signal to which the area designation information is added based on past polling data. If the called mobile station is in a mobile situation that does not satisfy the above specified information, the call with that mobile station is prohibited, and the same procedure is performed until a mobile station that is in a mobile situation that satisfies the above specified information is encountered. Calls are automatically repeated.

Therefore, during the above-mentioned call, a call is not made with a mobile station in an area other than the target area, and an operation of recalling the mobile station in the original target area again after the call is eliminated. It is possible to promote smooth operations related to service operations performed by designating a district. Further, as described above, the mobile station paging control method of automatically repeating the recall when the condition does not match,
Since the communication of radio waves related to useless calls outside the conditions is suppressed, it is very useful also in terms of radio wave efficiency.

FIG. 5 shows a control sequence of the entire mobile station paging control system in order to make it easier to understand the mobile station paging control system of the present invention.

First, from the base station 1, the areas A, B,
Polling is performed on a plurality of mobile stations belonging to the area in the order of C,. At the time of this polling, for example, mobile stations 101, 102, and 103 exist in the area A. Here, it is assumed that as a result of the polling, statistical results having higher priorities are obtained for the area A in the order of the mobile stations 103, 102, and 101 (see FIG. 2).

Thereafter, when the base station 1 receives a call request for a certain service operation for the area A, for example, based on the data obtained by the polling,
In the base station 1, based on the polling data, the area A
Then, an individual call signal including the area designation information is transmitted to the mobile station 103 having the highest priority.

At this time, the mobile station 103 is already in the area B, and receives the individual call signal in the area B. Here, the mobile station 103 recognizes that the own station is moving in the area B, determines that the mobile station 103 cannot respond to the individual call signal specifying the area A received from the base station 1, A negative acknowledgment signal is returned to the station 1.

Next, the base station 1 sends an individual call signal similar to the above to the mobile station 102 having the next highest priority in the area A initially targeted. At this time, since the mobile station 102 is still moving in the area A, the mobile station 102 returns an acknowledgment signal to the calling signal from the base station 1. Thus, the base station 1 makes a call with the mobile station 102 in the originally intended area A,
A desired service operation such as vehicle allocation can be performed.

In the above-described embodiment, a case has been described in which mobile stations are called in order of priority with a certain area as a limiting condition for the purpose of dispatching vehicles, but the present invention is based on the polling data after polling. The present invention can be applied to all controls that need to call each mobile station that satisfies the conditions for all conditions that change before the call is made in order of priority.

[0036]

As described above, according to the present invention, when a service function specifying a certain condition (district, etc.) is performed,
A mobile station having a certain priority that satisfies the above condition is individually called from a base station using a call signal to which the specified condition is added, based on past collected data, and the mobile station itself calls the specified condition from the called mobile station. If the mobile station receives an acknowledgment that satisfies the above conditions, it responds to the call, and if it receives a negative acknowledgment that it does not meet the above specified conditions, it targets the remaining mobile stations that satisfy the specified conditions. Since the same paging control as described above is automatically and repeatedly performed in the order of the priority, in the process of establishing a call with a mobile station that satisfies the specified condition, even if the priority is high, the condition is satisfied. It is possible to prohibit useless calls from being made to a mobile station that does not have any. Therefore, it is possible to eliminate the need to manually call another mobile station from a call state with a mobile station that does not meet the conditions, and to provide a specific service function that calls a corresponding mobile station from a base station under a specified condition and performs the operation. It is possible to provide an AVM system which is excellent in efficiency and enables efficient use of radio waves.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main configuration of an AVM system according to the present invention.

FIG. 2 is a diagram showing a display example of a polling result of the AVM system according to the present invention.

FIG. 3 is a flowchart showing an example of a control operation on the base station side based on the mobile station paging control method of the present invention.

FIG. 4 is a flowchart showing an example of a control operation on the mobile station side based on the mobile station paging control method of the present invention.

FIG. 5 is a diagram showing an example of a control sequence based on the mobile station paging control system of the present invention.

FIG. 6 is a system configuration diagram of a general AVM system of this kind.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base station 11 Radio | wireless part 12 Communication circuit 13 Microphone 14 Speaker 15 Data transmission / reception part 2 Computer 21 Interface part 22 Control part (CPU) 23 Memory part 24 Display part 25 Operation part 101-108 Mobile station

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁷ identification code FI H04Q 7/38 (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04B 7/24-7/26 102 H04Q 7 / 00-7/38

Claims (2)

(57) [Claims] 1. Various kinds of information collected from each mobile station in accordance with an instruction from a base station are totaled in a certain priority order and stored, and if necessary, a desired mobile station is transmitted from the base station based on the totalized data. When calling a mobile station satisfying a certain condition based on past aggregated data in an AVM system that can individually call a mobile station of a certain priority that satisfies the condition from a base station, condition information defining the condition And the mobile station receiving the conditional individual call sends an acknowledgment or a negative response to the base station depending on whether or not the own station satisfies the condition based on the condition information. Further, the base station responds to a call with the mobile station only when receiving an acknowledgment, and when receiving a negative acknowledgment, without performing a call with the mobile station under the same conditions. Mobile station call control method in AVM system characterized by repeated for the same conditional individual calling targeting the lower priority mobile station in the priority order. 2. The conditional paging as claimed in claim 1, wherein an acknowledgment is obtained from the calling mobile station or no mobile station satisfies the condition or continues for a predetermined number of times. Mobile station paging control system in the AVM system of the first embodiment.