JP4024556B2 - Digital broadcast radio system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is applied to a municipal disaster prevention radio system and the like, and relates to a digital broadcast radio system that efficiently rewrites ID of each device.
[0002]
[Prior art]
FIG. 5 is a system diagram showing the configuration of a conventional broadcast radio system represented by a municipal disaster prevention radio system. In the figure, 1 is a console, 2 is a master station, 3 is a relay station, 4 ₁ to 4 ₃ are slave stations, and 5 _{1 to} 5 ₃ are door-to-door receivers.
The console 1 is connected to the master station 2 by wire, and the master station 2 and the relay station 3, the relay station 3, the slave stations 4 ₁ to 4 ₃ and the individual receivers 5 _{1 to} 5 ₃ are connected via a wireless line. Further, the slave station ₄ 1, _{4 2} and individual homes receiver _{5 1} belong to group A, the slave station _{4 3} and individual homes receiver ₅ 2, _{5 3} belongs to group B, the group number is an identification number to each (hereinafter ID Registered).
[0003]
Next, the operation will be described.
When there is a communication request with the group B from the console 1, the master station 2 that has received this request communicates with the group B via the relay station 3. In this case, the slave station _{4 3} belonging to the group B, the door-to-door receiver _{5 2} and individual homes receiver _{5 3} starts the reception operation, the slave station ₄ 1, _{4 2} and individual homes receiver _{5 1} belonging to group A, the own After confirming that the station is not subject to communication, stop the receiving operation.
[0004]
In such a broadcast wireless system, for example, a group number, that is, an ID may be changed due to an increase in the group. A conventional ID rewriting method will be described with reference to FIG.
To group state of FIG. 5, it is newly provided a group C, the slave station 4 ₂ and individual homes receiver 5 ₃ is assumed to be assigned to the group C. In that case, a change request is issued from the console 1 to the master station 2. The master station 2 which has received the change request, the slave station 4 ₂ and door-to-door receiver 5 ₃ 1 station at a time individually call, sends an instruction to change the group number. Slave station 4 ₂ and individual homes receiver 5 ₃ that has received the change instruction, changes the group number of its own station C.
[0005]
[Problems to be solved by the invention]
Since the conventional broadcast radio system is configured as described above, when rewriting an ID such as a group number, call each station individually and confirm that the ID rewriting has been completed normally. In order to confirm, it has to be called one station at a time using means such as polling, and there is a problem that it takes time to rewrite the ID as the scale of the system increases.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a digital broadcast radio system that is easy to manage and can greatly shorten the time until completion of ID rewriting.
[0007]
[Means for Solving the Problems]
Digital broadcast wireless system according to the present invention comprises a console, the master station the console is wired connections, and a plurality of relay stations which are directly or cascaded by a wireless line to the master station, these relay stations A plurality of slave stations connected by a wireless line and a plurality of individual receivers connected to the relay station by a wireless line are arranged, and a system is formed around the master station to which the relay station is connected. , slave station and the door-to-door receiver to form a group within said system about a relay station for its connection, the console is broadcast to a device system and each group through the master station configure the digital broadcast wireless system to perform, wherein the master station and a relay station, a respective own identification number and the system number is stored in the slave station and door-to-door receivers, each own identification number, system No. and stores group number, said the console system number and group number corresponding to each of the identification numbers registered, when changing the configuration of the system and the group, the console is changed master station to the target, the relay station transmits the identification number of the slave station and door-to-door receiver, the system change message containing the ID rewriting messages having the system number and the group number to the master station, before Kioyakyoku is When the received system change message is analyzed and the change instruction of the own system is confirmed in the system change message, the ID rewrite message is transmitted to the subsequent relay station, and the relay station While relaying the ID rewrite message to the individual receiver and analyzing the ID rewrite message, When the change information of the number is included, the stored system number is rewritten to the change information, and the slave station and the door-to-door receiver analyze the ID rewrite message transmitted from the relay station. When the change information of the group number of the own station is included, the stored group number is rewritten to the change information .
[0008]
In the digital broadcast radio system according to the present invention, the master station analyzes the system change message, and when the change information of the system number of the own station is included, the stored system number is rewritten to the change information. It is.
[0009]
In the digital broadcast radio system according to the present invention, the relay station and the slave station whose system number and group number have been changed transmit an ID rewrite completion message to the master station, and the master station has completed rewriting of its own system number and A system change completion message indicating completion of ID rewriting of the device in its own system is transmitted to the console .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a digital broadcast radio system according to Embodiment 1 of the present invention. Here, a case where two systems centering on the master station are integrated is shown, one console, one master station 2 ₁ , 2 ₂ , three relay stations 3 _{1 to} 3 ₃ , four stations the slave station _{41 to 4} and four digital broadcast wireless system consisting of individual homes receiver ₅ 1 to 5 ₄ will be described as an example of.
[0012]
A plurality of main station 2 _1, 2 ₂ are connected by wire to the console 1, the main station 2 ₁ form a system 1, the master station 2 ₂ forms a system 2. In system 1, the master station 2 ₁ is connected the relay station 3 ₁ by wireless, the relay station 3 _1, the relay station 3 _2, the slave station 4 ₁ and individual homes receiver 5 ₁ is connected by wireless Yes. In this case, the relay station 3 ₂ are cascade-connected via the relay station 3 ₁ to the master station 2 _1. Slave station 4 ₁ and individual homes receiver 5 ₁ around the relay station 3 ₁ forms a group A. The slave station 4 ₂ and individual homes receiver 5 ₂ to the relay station 3 ₂ form a group B are connected by a radio line. On the other hand, in the system 2, the parent station 2 _RS2 3 ₃ are connected by wireless. The relay station 3 ₃ slave station 4 ₃ to _{4 4} to form a group C are connected by a radio line, also door-to-door receiver 5 _3, 5 ₄ are connected by wireless, to form a group D.
[0013]
ID information for identifying each device will be described. Each of the master stations 2 ₁ and 2 ₂ , the relay stations 3 _{1 to} 3 ₃ , the slave stations 4 ₁ to 4 _4, and the door-to-door receivers 5 _{1 to} 5 ₄ identifies itself, such as a preset individual number and manufacturing number. An identification number is stored. In addition, these devices store the system number (including system name) and group number (including group name) to which the device belongs when the system and grouping for determining the communication path are determined.
Accordingly, here, the main station 2 ₁ and the relay station 3 _1, 3 ₂ to be registered "system 1", the master station 2 ₂ and the relay station 3 ₃ are registered "system 2". The slave station 4 ₁ and individual homes receiver 5 ₁ is "group A" and "system 1", the slave station 4 ₂ and individual homes receiver 5 ₂ "system 1", "Group B" is registered. Further, “system 2” and “group C” are registered in the slave stations 4 ₃ and 4 _4, and “system 2” and “group D” are registered in the individual receivers 5 ₃ and 5 ₄ .
[0014]
FIG. 2 is an explanatory diagram showing an ID information management table of the console according to the first embodiment. FIG. 2A shows registration ID information before change, and FIG. 2B shows an example of ID information for changing a system and a group. In this ID information management table, the “name” column is considered to indicate an identification number for identifying each device. In the operation described below, a system change message and an ID rewrite message are used. The ID rewrite message is composed of, for example, data relating to the relay station, slave station, and individual receiver in FIG. It is assumed that the data relating to the master station includes this ID rewrite message. From these system change messages and ID rewrite messages, when the change information is analyzed by the master station, relay station, slave station and individual receiver, the corresponding system number or group number is searched based on its own identification number. Then, it is performed by such a method that the necessity of change is determined by collating with the stored number.
[0015]
FIG. 3 is an explanatory diagram showing an ID rewrite connection sequence according to the operation example of the first embodiment. Next, the operation will be described.
The user inputs the system change message shown in FIG. The console 1 transmits the input system change message to the master stations 2 ₁ and 2 ₂ . When the master stations 2 ₁ and 2 ₂ receive the system change message, the master stations 2 ₁ and 2 ₂ analyze whether the change information is included in the system number corresponding to its own identification number and the group number in its own system. If the change information is not included in the system change message, the system change message is discarded. If only the change information related to the system number of the own station is included in the system change message, the new system number is rewritten, and a system change completion message of the own system is transmitted to the console 1.
[0016]
In this example, because it contains change information for a group of system 1 and system 2 to the system change message, the main station 2 ₁ and the master station 2 ₂ each subsequent stage of the relay station 3 ₁ and the relay station 3 ₃ ID rewrite message is transmitted to.
When the relay station 3 ₁ receives the ID rewrite message, the relay station 3 ₁ relays the ID rewrite message to the relay station 3 ₂ , the slave station 4 _1, and the individual receiver 5 _{1 at the} subsequent stage, and at the same time, from the ID rewrite message, the relay station 3 ₁ Analyze change information related to (number). Here, if it contains changes on the relay station 3 ₁ ID rewriting the message, the relay station 3 ₁ performs rewriting own station ID (system number), the own station ID to the master station 2 ₁ A rewrite completion message will be sent. In this example, since the change information of its own station ID of the relay station 3 ₁ ID rewriting message is not included, the relay station 3 ₁ is only relays the ID rewriting message.
[0017]
In the system 2 side, at the same time the relay station _{3 3,} like it receives the ID rewriting message, subsequent slave station ₄ 3, _{4 4} and individual homes receiver ₅ 3, _{5 4} against the relays ID rewriting message ID rewriting Change information related to the local station ID is analyzed in the message. Here, since the change information of its own station ID of the relay station 3 ₃ does not include, also the only relays the ID rewriting message downstream relay station 3 _3.
Subsequently, at the same time the relay station 3 RS ₁ 3 ₂ receives the relayed ID rewriting messages by likewise later stage of the slave station 4 _{2 and} relays the ID rewriting message to individual homes receiver 5 _2, the message The change information related to the local station ID (system number) is analyzed. Here, because it contains change information for changing instructing system number of the relay station 3 ₂ to the system 2 in the ID rewriting the message, the relay station 3 _2, after rewriting the own station ID from the system 1 to the system 2 , and transmits the rewrite completion message directly to the master station 2 _2.
[0018]
Similarly the relay station 3 _2-door receiver 5 ₂ receiving relayed ID rewriting message in analyzes change information about the own ID in ID rewriting messages (system number, the group number). Here, because it contains change information for changing instructing system number of individual homes receiver 5 ₂ in the ID rewriting the message to the system 2, door-to-door receiver 5 ₂ rewrites the own ID from the system 1 to the system 2 The Likewise, the relay station 3 ₂ slave station 4 ₂ that has received the relayed ID rewriting messages by also analyzing the changes information about the own station ID in the message (system number, the group number). Here, since the system number of the slave station 4 ₂ in the ID rewriting the message from the system 1 contains change information for instructing change to the system 2, the slave station 4 _2, the own station ID from the system 1 to the system 2 rewriting, to the master station 2 ₂ via the relay station 3 ₂ transmits a rewrite completion message of its own station ID.
[0019]
Similarly, the relay station 3 ₁ child receiving the relayed ID rewriting message at station 4 ₁ and individual homes receiver 5 _1, analyzes the change information about the ID of the message (system number, the group number). In this case, since not included in the change information of the slave station 4 ₁ and individual homes receiver 5 ₁ ID, the slave station 4 ₁ and individual homes receiver 5 ₁ discards the ID rewriting message. Further, the slave station ₄ 3 has received the ID rewriting messages relayed by the relay station _{3 3, 4 4} and individual homes receiver ₅ 3, _{5 4} similarly the own station ID (system number in the message, the group number ) Search for change information. Here, the ID rewriting message includes change information for instructing to change the group numbers of the slave stations 4 ₃ and 4 ₄ from the group C to the groups A and C, and the group numbers of the individual receivers 5 ₃ and 5 ₄ are grouped. Change information for instructing change from D to groups A and D is included. Therefore, for the slave stations 4 ₃ and 4 ₄ , the local station ID is rewritten from the group C to the groups A and C, and a rewrite completion message is transmitted to the master station 2 ₂ via the relay station 3 _3. For the receivers 5 ₃ and 5 ₄ , the local station ID is only rewritten from the group D to the groups A and D.
[0020]
Master station 2 ₁ receives the rewriting completion message from the relay station 3 _1, and notifies the system change completion message about its own system console 1. Similarly, the master station _{2 2} from the relay station ₃ RS _{2 3 2} and the slave station _{4 2,} also receives the rewriting completion message of the relay station _{3 3} slave station ₄ 3, _{4 4,} the system relates to the own system A change completion message is notified to the console 1.
FIG. 4 shows the configuration of the change system when the ID rewriting is completed by the series of operations described above. The rewrite completion message or system change message may include the identification number, system number, group number, etc. of the device that has made the change. By doing so, the console 1 collates them with the ID data of FIG. 2B, and it becomes easy to confirm the change state. Also, the confirmation of the state of the change may be automatically performed by a method of changing the color of the target data on the monitor of the console 1 when, for example, matching is confirmed with the ID data. It becomes possible.
[0021]
As described above, according to the first embodiment, when the user wants to change the ID for any station in the system, the system change message is sent in a batch from the console, and the master station passes through the relay station. The system change message is notified to the slave station and the individual receiver as an ID rewrite message in the broadcast communication, and the slave station and the individual receiver that have received the ID rewrite message analyze the message, When the local station ID change information is included, the local station ID is rewritten, so that the user can easily manage the system and the process up to the completion of the ID rewriting compared to the conventional ID rewriting system. The effect that time can be shortened significantly is acquired.
[0022]
Further, according to the first embodiment, it is possible to cope with a large-scale system composed of a plurality of master stations and relay stations, and by giving a unique ID to the master station and relay stations, the master console can Since the ID rewriting of the station and the relay station is made possible, an effect that can be adapted to system expansion such as future merger of municipalities is obtained. Furthermore, the relay station and the slave station notify the master station that the ID rewriting has been completed to the master station as an ID rewrite completion message, and the master station has completed the system change indicating the completion of the change of the own system in addition to the ID rewrite completion message. Since the message is notified to the console, the user can quickly confirm the completion of the system configuration change, and the effect of enabling highly reliable system management can be obtained.
[0023]
In the first embodiment, an example in which a framework of a system centered on a plurality of master stations is provided and can be applied to a wide area digital broadcast radio system has been described. The present invention can be similarly applied to a digital broadcast radio system of a scale. However, in this case, the system configuration is not used as in the conventional case, and only the group configuration is performed.
[0024]
【The invention's effect】
As described above, according to the present invention, a console, a plurality of master stations to which the console is connected by wire, a plurality of relay stations that are directly or cascade-connected to the master stations via a wireless line, and the relays A plurality of slave stations connected to a station via a radio channel and a plurality of individual receivers connected to a relay station via a radio channel are arranged to form a system centering on the master station to which the relay station is connected. A slave station and a door-to-door receiver form a group in the system centering on the relay station to which the slave station and door-to-door receiver are connected, so that the console can broadcast to each system and each group of devices via each master station. It constitutes a digital broadcast radio system, and its own identification number and system number are stored in the master station and relay station, respectively, and its own identification number, system number and group number are stored in the slave station and the door-to-door receiver, respectively. Etc. On the console, the system number and group number corresponding to each identification number are registered. When changing the configuration of the system and group, the console will change the master station, relay station, A system change message including an ID rewrite message consisting of an identification number, a system number, and a group number of each station and individual receiver is transmitted to each parent station, and each parent station analyzes the received system change message, and When the change instruction of the own system is confirmed in the system change message, the ID rewrite message is collectively transmitted to the slave station and the individual receiver via the relay station of the subsequent system, and the system change message is received. The master station, relay station, slave station, and individual receiver receive their own identification numbers in the system change message or ID rewrite message. When the change information is confirmed for the corresponding system number and group number, the stored system number and group number, etc. are rewritten to the change information. It is easy to rewrite IDs of stations, relay stations, slave stations, and individual receivers, change the system configuration, and even integrate with other systems, making it easy for users to manage the system, and until ID rewriting is complete The effect of greatly shortening the time is obtained.
[0025]
According to the present invention, the relay station and the slave station whose system number and group number have been changed transmit an ID rewrite completion message to the master station, and the master station completes rewriting of its own system number and the equipment in the own system. Since the system change completion message indicating the completion of ID rewriting is configured to be sent to the console, the user can quickly confirm the completion of the system configuration change, and the effect of enabling highly reliable system management. is there.
[0026]
According to the present invention, an operation console, a parent station to which the operation console is wired, a plurality of relay stations connected to the parent station via a wireless line, and a plurality of relay stations connected to the relay station via a wireless line A slave station and a plurality of door-to-door receivers connected to the relay station via wireless lines are arranged, and a single or a plurality of groups are formed and operated around the relay station to which the slave station and the door-to-door receiver are connected. In a digital broadcast wireless system, the relay station, slave station, and door-to-door receiver store their own identification numbers and group numbers, etc., so that the console performs broadcast communication to each group of devices via the master station. The group number corresponding to each identification number is registered in the console, and when changing the group configuration, the console identifies the identification numbers of relay stations, slave stations, and individual receivers to be changed. And group number The D rewrite message is sent in a batch from the master station, and the relay station, slave station and individual receiver that received the ID rewrite message confirm the change information to the group number corresponding to their own identification number in the ID rewrite message. In this case, since the stored group number is rewritten to the change information, it is possible to easily rewrite the IDs of relay stations, slave stations and individual receivers by a batch instruction from the console. It is easy for the user to manage and has the effect of greatly shortening the time to complete ID rewriting.
[0027]
According to the present invention, since the slave station and the relay station whose group number has been changed are configured to transmit an ID rewrite completion message to the console via the relay station and the master station, the user can promptly complete the ID rewrite. It can be confirmed, and there is an effect that enables highly reliable system management.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a broadcast radio system according to a first embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an example of an ID table according to the first embodiment.
FIG. 3 is an explanatory diagram showing an ID rewrite connection sequence according to the first embodiment.
4 is a configuration diagram showing a system configuration after completion of ID rewriting according to the first embodiment. FIG.
FIG. 5 is a block diagram showing an example of a conventional broadcast radio system.
FIG. 6 is an explanatory diagram showing a conventional ID rewriting method.
[Explanation of symbols]
1 console, 2, 2 ₁ , 2 ₂ master station, 3, 3 _{1 to} 3 ₃ relay stations, 4 ₁ to ₄ slave stations, 5 _{1 to} 5 ₄ separate receivers.

Claims (3)

And console, the master station the console is wired connections, and a plurality of relay stations which are directly or cascaded by a wireless line to the master station, a plurality of slave stations which are connected by wireless to these relay stations A plurality of door-to-door receivers connected to the relay station via wireless lines, and forming a system centering on the parent station to which the relay station is connected, and the slave station and the door-to-door receiver of the connected form a group within said system about the relay station, the console constitutes a digital broadcast radio system to perform broadcast to devices the system and each group through the master station ,
Wherein the master station and the relay station, the self identification number and the system number are each stored,
The slave station and door-to-door receivers, each own identification number, stores the system number and the group number,
Wherein the console is system number and group number corresponding to each of the identification number is registered,
When changing the configuration of the system and the group, the console is the master station of interest changes, the relay station, the identification number of the slave station and door-to-door receiver, an ID rewriting messages having the system number and the group number the system change message containing transmitted to the master station,
Before Kioyakyoku analyzes the system change message received, when confirming the change instruction of the own system to the system change message, and sends the ID rewriting message downstream relay stations,
The relay station relays the ID rewrite message to the slave station and the individual receiver at the subsequent stage, analyzes the ID rewrite message, and stores the change information of the system number of the own station. Rewrite the changed system number to the change information,
The slave station and the door-to-door receiver analyze the ID rewrite message transmitted from the relay station, and when the change information of the group number of the own station is included, the stored group number is used as the change information. A digital broadcast radio system characterized by being rewritten to. 2. The digital station according to claim 1, wherein the master station analyzes the system change message, and rewrites the stored system number to the change information when the change information of the system number of the own station is included. Broadcast radio system. System number and the relay station and the slave station which changes the group number is, transmits the ID rewriting completion message to the master station, the master station an ID rewriting completion equipment rewrite completion and the self system of the system number of its own station 3. The digital broadcast radio system according to claim 2, wherein a system change completion message is transmitted to the console.

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