JPH0965410A - Multi-channel access communication system - Google Patents

Abstract

(57) Abstract: In a multi-channel access communication system, when collecting data input by a terminal device, the processing is simplified and the time required to collect data from all the data collection target terminal devices is shortened. To do. In addition, after the data is input to the terminal device, the time during which the terminal device cannot be used for other communication by data collection is shortened as much as possible. SOLUTION: In a control channel which is conventionally used only for control of a multi-channel access method and transmits only this control information, information for collecting data input by a terminal device is transmitted, and only the control channel is used. The data input by the terminal device is collected without using the call channel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a channel allocation control system for a multi-channel access communication system.

[0002]

2. Description of the Related Art In a multi-channel access communication system, data input by a plurality of terminal devices, for example,
When collecting data such as questionnaire responses, in the conventional method, the terminal device to which the data has been input is temporarily set to the operating state of the call channel, and then information is exchanged between the terminal device and the control device in the call channel. I was going.

An example of a first operation procedure according to the conventional technique will be described with reference to FIG. For example, the terminal devices A, B, C,
It is assumed that there are D and E, and the terminal devices A, B, and C among them are the terminal devices for which the input data is collected. In this case, the data collection is performed by the following procedure.

The control device F transmits a calling signal 11 to the terminal device A, and the terminal device A which has received this signal shifts from the control channel (c) to the communication channel (s), and the control device F
Is a data request signal 5 to the terminal device A on the call channel
By transmitting the data 6, the terminal device A exchanges information on the call channel, releases the call channel and returns to the control channel after the information exchange is completed. Next, the control device F
Transmits a calling signal 12 to the terminal device B, and the terminal device B which has received this shifts to the call channel in the same manner as described above, and the control device F sends a data request signal 7 to the terminal device B on the call channel to The device B transmits the data 8, exchanges information on the call channel, and releases the call channel after the information exchange is completed. Next, the control device F transmits the call signal 13 to the terminal device C, the terminal device C which has received the call signal shifts to the call channel as described above, and the control device F sends the data request signal to the terminal device C on the call channel. 9, the terminal device C transmits data 10, exchanges information on the call channel, and releases the call channel after the information exchange is completed.

In the above-mentioned method, the data collection operation for one terminal device requires a two-step operation procedure of a call signal transmission and an information exchange operation, which complicates the processing and also causes the data collection operation. Takes a long time.

Further, an example of the second operation procedure according to the conventional technique will be described with reference to FIG. Similar to the previous example, for example, there are terminal devices A, B, C, D, and E, and it is assumed that the terminal devices A, B, and C are the terminal devices for which the input data is collected. . In this case, the data collection is performed by the following procedure.

The control device F transmits the call signal 14 to the terminal devices A, B and C and receives the call signal 14, and the terminal device A,
B and C are control channel (c) to call channel (s)
Then, the control device F transmits the data request signal 5 to the terminal device A on the communication channel, and the terminal device A transmits the data 6
Information is exchanged on the call channel by sending Next, the control device F transmits a data request signal 7 to the terminal device B on the communication channel, the terminal device B transmits data 8, and information exchange is performed on the communication channel. Next, the control device F
Is a data request signal 9 to the terminal device C on the call channel
Then, the terminal device C transmits the data 10 and exchanges information on the communication channel. After the information exchange is completed, the three terminal devices release the communication channel and return to the control channel.

In this second operation procedure example, the calling procedure is performed once for the series of data collection, and the processing is simplified as compared with the first operation procedure example. However, until the end of the series of collection processing, all the target terminal devices are supplemented to the call channel and remain in the call channel state,
Even if there is a request to use the terminal for other communication, the terminal device cannot be used for the communication.

[0009]

As described above, in the conventional method, it takes a long time to collect data from all data collection target terminal devices. Alternatively, there is a drawback in that the data collection target terminal device cannot be used for other communication because it is supplemented with a call channel more than necessary, which limits the operation.

If it takes a long time to collect data, it becomes difficult to carry out a questionnaire having a large number of terminal devices, for example, a highly reliable questionnaire. In addition, after the data is input to the terminal device, it is required to minimize the time that the terminal device is occupied for the data collection operation.

[0011]

In order to solve the above problems, the present invention is used only for the control of the conventional multi-channel access method, and the control channel that transmits only this control information is input by the terminal device. The collected data is transmitted, and only the control channel is used to collect the data input by the terminal device without using the communication channel.

As a result, the communication for data collection to one terminal device is simplified to only once, and the time required for data collection is shortened. Further, the terminal device concerned is supplemented by the data collection only for the above-mentioned one communication period, and the time during which it cannot be used for other communication for the data collection becomes extremely short.

[0013]

1 is a block diagram showing the arrangement of a control device in a multi-channel access communication system according to an embodiment of the present invention.
Shown in A channel control unit 1 manages the channel use status of the multi-channel access communication system, and creates, transmits, receives, and analyzes control information to instruct the terminal device to use the channel. A transmitter 2 modulates the control information transmitted by the channel controller 1 and transmits the modulated control information to a terminal device (not shown). A receiver 3 receives the control information transmitted from the terminal device, demodulates it, and passes it to the channel control unit 1. A data collection control unit 4 automatically or manually activates data collection, activates the collection operation to the channel control unit 1 and manages and displays the collected data.

This operation will be described below. During normal operation, the data collection control unit 4 is not operating, and the channel control unit 1 exchanges multi-channel access control information with the terminal device via the transmitter 2 and the receiver 3 to perform multi-channel access. The system operates as a communication system. When the operation of collecting terminal input data is started by the data collection control unit 4 automatically or manually, the data collection control unit 4 requests the channel control unit 1 to start data collection. The channel control unit 1 requested to start data collection collects data for the target terminal device (not shown) according to the content of the request, notifies the data collection control unit 4 of the collected data, and controls the data collection control. Part 4
Performs processing such as tabulation and display of this data.

Next, an example of a data collection procedure for the terminal device will be described with reference to FIG. For example, the terminal device A,
There are B, C, D and E, of which terminal devices A, B and C
Is a terminal device that is a target of collecting the data input in each terminal device. In this case, the data collection is performed by the following procedure.

The control device F transmits a data request signal 5 to the terminal device A on the control channel (c), the terminal device A transmits data 6, and information exchange is performed on the control channel. Next, the control device F transmits a data request signal 7 to the terminal device B on the control channel, the terminal device B transmits data 8, and information exchange is performed on the control channel. Next, the control device F
Is a data request signal 9 to the terminal device C on the call channel
Then, the terminal device C transmits the data 10 to exchange information on the call channel and releases the call channel after the information exchange is completed.

As a result, the communication for collecting data for one terminal device is simplified to only once. Further, the terminal device concerned is supplemented by the data collection only during the above-mentioned one-time communication.

The present invention can be applied regardless of whether the communication medium between the control device and the terminal device is a wireless high frequency, a high frequency transmitting a coaxial cable or the like, or anything else.

[0019]

As described above, according to the present invention, the communication for data collection with respect to one terminal device is simplified only once each time and the processing is facilitated. Further, since communication is simple and the number of times is small, the time required for collection is shortened. Furthermore, the terminal device concerned is supplemented for data collection only during the above-mentioned one communication period, and the time during which it cannot be used for other communication for data collection becomes extremely short. The above constraint can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a block configuration of a control device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an operation procedure according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a first operation procedure of a conventional multi-channel access communication system.

FIG. 4 is a diagram showing an example of a second operation procedure of a conventional multi-channel access communication system.

[Explanation of symbols]

 1: channel control unit, 2: transmitter, 3: receiver, 4: data collection control unit.

Claims (1)

[Claims] 1. A control device and a plurality of terminal devices, wherein a plurality of channels for communication are shared by the plurality of terminal devices, and the channels are assigned to the terminal devices according to a communication method for communication. In a multi-channel access communication system having a control channel used for transmission of control signals for channel allocation control and a speech channel used for transmission of information data, the data input by the terminal device In the multi-channel access communication, the control device has means for exchanging information data between the terminal device and the control device by using the control channel without using the communication channel when collecting. system.