JPH02114730A - Talking system - Google Patents

Abstract

PURPOSE:To improve the operability by devising the system such that a specific radio equipment for each group can listen to a talking when at least one talking radio equipment belongs to its own group through the use of an identification data for each group. CONSTITUTION:When a data D is received by mobile stations 101, 201, 301 being supervisory vehicles, whether or not individual talking to its own station is requested is discriminated based on a call destination vehicle number data D3 of the received data D. When an individual talking to its own station is requested, switches SW1, SW2 are subject to conduction/interruption control selectively to attain talking enable state. If not, based on a vehicle number data D4 representing the call sender, whether or not a mobile station of a call sender belongs to its own group is discriminated, and if so, the mode is brought into the talking enable state. Thus, the talking content of the entire radio equipments of its own group is grasped accurately.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is suitably implemented in so-called multi-channel access (abbreviation: MCA) radio equipment used in the transportation industry such as the delivery industry. Concerning call methods.

BACKGROUND OF THE INVENTION In the transport and transportation industry, identification data corresponding to a vehicle number or the like is assigned in advance to each radio set mounted on a plurality of vehicles. Furthermore, each radio device is divided into one or more groups based on, for example, the office to which the vehicle belongs, and each group is provided with a supervisory vehicle that supervises the group.

In a typical prior art technique, each radio transmits the identification data of the desired party to make a call, and when a response is received, the radio that made the call and the one corresponding to the identification data are sent. Alternatively, the device is configured to communicate only with multiple wireless devices.

Problems to be Solved by the Invention In order to grasp the movements of subordinate vehicles within the same group, it is necessary for the supervisory vehicle to at least intercept the contents of telephone conversations of subordinate vehicles. However, in the conventional technology as described above, individual calls are made between only the radio device that made the call and the radio device that responded, so the supervisory vehicle cannot accurately record the content of the call of the subordinate vehicle. can't figure it out. Furthermore, when it is necessary to report the contents of the call to the supervising vehicle, which is a vehicle with a higher priority than the vehicle that made the call, the subordinate vehicle must report the contents of the call back to the supervising vehicle, resulting in poor operability.

An object of the present invention is to enable at least a specific radio device in a group to which the radio device belongs to intercept the contents of the call when a radio device starts a call, so that the specific radio device can: To provide a call method that allows the user to grasp the contents of calls made by wireless devices of the entire own group and has improved operability.

Means for Solving the Problems The present invention provides a communication system between a plurality of wireless devices, in which each wireless device is divided into one or more groups, and each wireless device has group identification data for each group to which it belongs; Mutual identification data for mutual identification within the group is assigned, and the specific radio equipment for each group detects, using the group identification data, that at least the radio equipment on one side of the call belongs to its own group. This is a telephone call system characterized in that at least the call can be listened to.

Effect According to the present invention, a plurality of radio devices are divided into groups or groups, and each radio device has group identification data for each group to which it belongs, and mutual identification data for mutual identification within the group. identification data is assigned. A specific radio set provided for each group detects, based on the group identification data, that another radio in the group to which the specific radio belongs is at least on one side of the call. Sometimes, the particular radio can at least hear the content of the call.

Therefore, even if the specific radio is not participating in a call, the specific radio can not only communicate with other radios in its own group, but also communicate with other radios in other groups. You can also listen to the content of the call, allowing you to accurately grasp the content of calls made by radios in your entire group, and the rest of the radios that made the call report the content of the call to the specific radio. There is no need to do this, and operability can be improved.

Embodiment FIG. 1 is a system diagram for explaining a communication system according to an embodiment of the present invention. For example, a plurality of mobile stations 101 to 105, such as trucks, 201 to 204; 301 to 305,
They are divided into groups G1 to G3 based on the office to which they belong. Further, within each group G1 to G3, a supervisor vehicle, for example, mobile station 101201.301, is selected to supervise the groups G1 to G3.

For example, in a group G1, a mobile station 101 that is a supervisory vehicle is a subordinate mobile station 102 in its own group G1.
~105 individually, as well as other groups G2. G3 mobile stations 201 to 204.301
~305 can be individually spoken. On the other hand, mobile stations subordinate to mobile station 101, for example 102
When the mobile station 101 makes a phone call with other mobile stations 1.3 to 105 in its own group G1, the mobile station 101 can also join the call. Also, this mobile station 102 belongs to another group G2. G3 mobile stations 201 to 204/301
305, the mobile station 101 can also join the call.

FIG. 2 is a block diagram showing the electrical configuration of the radio device 1 mounted on the mobile station 101.201301, which is the supervisor's vehicle. The data and audio signals received by antenna 2 are
The signal is applied to demodulator 3. The audio signal demodulated by the demodulator 3 is given to the speaker 4 via the switch SWI, and is converted into sound.

Further, the data demodulated by the demodulator 3 is provided via a line 11 to a processing circuit 5 realized by, for example, a microcomputer.

In connection with the processing circuit 5, a car number setting means 6 and a memory 7 are provided. The vehicle number setting means 6 is realized by, for example, a 10-bit dip switch, and is set to a number corresponding to the vehicle number in which the radio device 1 is installed, for example, rloIJ. The memory 7 stores the group to which the radio device 1 belongs and the vehicle numbers r of subordinate mobile stations 102 to 105 in G1.
102J to "105" are stored. When the vehicle number of the own army set by the vehicle number setting means 6 can be written into the memory 7, the vehicle number setting means 6 may be omitted.

Also connected to the processing circuit 5 is a breath-talk switch 10 for switching between transmitting and receiving operations.

The audio signal from microphone 8 is given to modulator 9 via switch SW2. The modulator 9 is also supplied with data such as the car number via line β2. The audio signal and data modulated by the modulator are transmitted from the antenna 2.

When the own station, for example, the mobile station 101, makes a call, the processing circuit 5 naturally processes the group Gl to which the mobile station 101 belongs.
When the remaining mobile stations 102 to 105 make a call, the switch 5WISW2 is selectively turned on/off in response to the press operation of the breath talk switch 10 by the operator.

Mobile stations 102 to 1o5; 202 to 204 respectively subordinate to the mobile stations 101, 201 and 301, which are the above-mentioned supervisory vehicles.
．． The radios 1a mounted on the radios 302 to 305 are constructed in the same manner as the radio 1, and are provided with a vehicle number setting means 6 for setting the vehicle number of one's own army, and the memory 7 may be omitted.

FIG. 3 shows each mobile station 101-105, 201-204;
FIG. 4 is a diagram showing the format of data D that is sent to the other party prior to the call when the parties 301 to 305 wish to make a call. This data D includes pill synchronization data D1 and frame synchronization data D2 for obtaining synchronization when reading data in the processing circuit 5, called destination car number data D3, and own car number data D4 that is the calling source. Consists of spiky bones. The called destination car number data D3 and the own car number data D4 have functions as group identification data indicating the group to which they belong, and mutual identification data for mutual identification within the group.

Radio device 1 of mobile station 101, 201, 301 which is a supervisory vehicle
, the processing circuit 5 reads the data D received via the line 11, and queries the called destination car number data D3 and own car number data D4 of this data D with the car number data in the memory 7, When a mobile station in its own group is making a call, it is possible to participate in the call by controlling switches SWI and SW2 to turn on/off in response to the operation of the breath talk switch 10. At this time, switch S
It may be configured such that only the WI is turned on and only the contents of the call are intercepted.

FIG. 4 is a flowchart for explaining the operation of the mobile station 101 201301, which is the supervisory vehicle. In step n1, the standby state is entered, and in step n2, data D is received. In step n3, an individual call to the own station is requested based on the called destination car number data D3 of the received data D. It is judged how it is. If an individual call to the own station is requested in step n3, the process moves to step rr4, and in response to the press operation of the breath talk switch 10, the switches sw1 and SW are pressed.
2 is selectively controlled to be conductive/cut off, and the process returns to step nl with the communication enabled state.

In step n3, if an individual call to the own station is not requested, the process moves to step n5, and it is determined whether the calling mobile station belongs to the own group based on the own vehicle number data D4 representing the calling party. If the decision is made, the process moves to step n4 to make the call possible, and if not, the process moves to step n6.

In step n6, based on the called destination car number data D3, it is determined whether the called destination mobile station belongs to the own group, and if so, the process moves to the above step n4, and the call is enabled, and step n1 If not, the process returns to step n1 as a call-disabled state in which participation in the call is not possible at step n7.

In this manner, in the communication system according to the present invention, the mobile stations 101, 201, 301, which are supervisory vehicles, are subordinate to mobile stations 102-105, 202-204;
~ When 3o5 makes a call with another mobile station in its own group or with a mobile station in another group, we made it possible to at least intercept this call, so we can accurately grasp the content of the call of the subordinate station and communicate with the subordinate station. Can supervise the station. Furthermore, when a subordinate station makes a call, the content of the call is automatically intercepted by the mobile stations 101, 201, and 301, which are supervisory vehicles, so there is no need to report the content of the call. can be significantly improved.

Effects of the Invention As described above, according to the present invention, a plurality of radio devices are divided into one or more groups, a specific radio device is provided for each group, and the group to which the specific radio device belongs is divided. When it is detected that another radio is on at least one side of a call, the particular radio is enabled to at least listen to the content of the call; Even when the radio itself is not participating in a call, you can listen to not only the conversations between the remaining radios in your own group, but also the content of the conversations between the remaining radios and radios in other groups. In addition to being able to accurately grasp the content of calls made by radios in the entire group, there is no need for the remaining radios that made the call to report the content of the call to that specific radio, improving operability. can be improved.

[Brief explanation of the drawing]

FIG. 1 is a system diagram for explaining a communication system according to an embodiment of the present invention, and FIG. 2 shows a mobile station 101, 201, which is a supervisory vehicle,
3 is a block diagram showing the electrical configuration of the radio device 1 installed in the mobile station 301, FIG. 3 is a diagram showing the format of data D transmitted to the other party, and FIG. This is a flowchart for 1...Radio device, 3...Demodulator, 4.Speaker, 5.
. . . Processing circuit, 6. Vehicle number setting means, 7. Memory,
8.Microphone, 9...Modulator, 101-105.
201-204.301-305...mobile station, G1-
G3...Group agent Patent attorney Keiichi Nishikyo

Claims (1)

[Claims] In a communication system between a plurality of radio devices, each radio device is divided into one or more groups, and each radio device has group identification data for each group to which it belongs,
Mutual identification data for mutual identification within the group is assigned, and the specific radio equipment for each group detects, using the group identification data, that at least the radio equipment on one side of the call belongs to its own group. , a call method characterized in that at least the call is listened to.