JPS62101159A - Interphone - Google Patents

Abstract

PURPOSE:To test easily whether a slave machine number set in a repeater is correct for number plan or not and whether abnormality occurs in the transmission of bidirectional signals between a master machine and the repeater, by comparing the slave machine number and a slave machine number of a test signal are compared with each other by a repeating CPU and transmitting back a response signal to a CPU for master machine if they coincide with each other. CONSTITUTION:When a channel selecting switch 26 is turned on, the test signal including selected slave machine number information is sent from a CPU14 for master machine to control lines L1 and L2. A CPU19 for repeater compares the slave machine number of the sent test signal with that set to a slave machine number setting part 18, and the response signal is sent back to the CPU14 for master machine if they coincide with each other. When this response signal is sent back, an indicator lamp 28 corresponding to the selected slave machine is lit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an intercom device, and more particularly to an intercom device that can easily perform a channel selection function test and normally functions as a hospital Nascall system.

[Technical Background of the Invention] An intercom device as shown in FIG. 3 has heretofore been known. This type of intercom device 1 has l[i2,
Repeater 3. It is formed from the slave unit 4. To test whether the correspondence between the handset and the handset number is correct, first make a call from the handset 4 and confirm that the indicator light 6 is lit. Next, turn on the channel selection switch 5 and confirm that the specific handset 4 is called.

Only after conducting such a test can the intercom device 1 be used.

[Problems in the background art] However, whether or not the handset and handset numbers correspond, that is, whether the handset number set on the repeater is correct for the numbering plan, and then whether the handset and the handset number correspond In order to confirm whether there are any abnormalities in the two-way signal transmission between the handsets, it is necessary to check the operation of both the slave unit and the base unit, and furthermore, if the two are installed far apart, testing is necessary. There are problems such as the need for multiple personnel.

[Object of the invention] The present invention has been made in view of the above-mentioned problems, and
Provides an intercom device that allows you to easily test whether the handset number set on a repeater is correct for the numbering plan and whether there are any abnormalities in bidirectional signal transmission between the base unit and the repeater. The purpose is to

[Summary of the Invention] To achieve this object, the intercom device of the present invention includes an activation unit that enables a channel selection function test, and a handset number that is selected while the activation unit is operating. a channel selection unit that outputs a test signal containing information; and a main unit C that processes the test signal output from the channel selection unit and sends it to a line.
P'U, a handset number setting unit that assigns a handset number to each handset based on a number setting plan, and a handset number set in the handset number setting unit and the handset number for the base unit via the line. C
A repeater CPU that compares the slave device number of the test signal sent from the PU and returns a response signal to the base CPU if they match, and a response signal processed by the base CPU. The device is equipped with a display unit that lights up an indicator light corresponding to the selected handset.

[Embodiments of the Invention] Preferred embodiments of the invention will now be described in detail with reference to FIG. The intercom device 10 of the present invention includes a starting section 12, a channel selection section 13. Master unit CPU 14, display unit 15. ! It is formed by a transport transmitting/receiving circuit 16, a slave number setting section 18 constituting a repeater 17, a repeater CPU 19, a slave interface circuit 20, a repeater transmitting/receiving circuit 21, and a slave 22.

The starting section 12, which is composed of a starting switch input circuit 23 and a starting switch 24, enables a channel selection function test, and is connected to the input terminal of the base unit CPU 14.

When the activation switch 24 is turned off, the intercom system ffi! 10 functions as a hospital Nascall system, and when the start switch 24 is turned on, the intercom device 10 is subjected to a channel selection function test. In addition, the channel selection switch input circuit 25
The channel selection section 13 is composed of a channel selection switch 26 and a channel selection switch 26.

It outputs a test signal including the selected slave unit number information while the activation unit 12 is operating, and the CPU for the base unit
14 input terminals. The display unit 15, which is composed of a display circuit 27 and an indicator light 28, lights up the indicator light 28 corresponding to the selected handset 22 based on the response signal processed by the main unit CPU 14. connected to the output end of the The base unit CPU 14 processes the test signal output from the channel selection section 13 and outputs the line L1.
, and is sent to L2. The transmitting/receiving circuit 16 for the base unit has one end connected to the base unit CPtJ14, and the other end connected to the control line L1.
Connected to L2. One end of the repeater transmitting/receiving circuit 21 is connected to the control lines LL and L2.

The other end is connected to the repeater CPU 19. The handset number setting unit 18 assigns a handset number to each handset 22 based on the number setting plan 11.
is connected to the input end of the

The repeater CPU 19 compares the handset number set in the handset number setting section 18 with the handset number of the test signal sent from the base CPU 14 via the lines LL and L2, If they match, a response signal is sent back to the master CPU 14. The slave unit interface circuit 20 is connected to the input terminal and output terminal of the repeater CPU 19, and matches the connection conditions between the repeater CPU 19 and the slave unit 22.The slave unit 22 is connected to the slave unit interface 20. The main unit 11 is connected to the main unit 11 via a repeater 17, and is used for communication with the base unit 11.

It should be noted that all the parts except the activation section 12 are configured to operate even during a calling call between the parent and child devices when the activation section 12 is not activated. Next, the operation of the channel selection function test of the intercom device will be explained based on FIGS. 1 and 2.

When the activation switch 24 is turned on at this time, the intercom device 10 is brought into a state in which a channel selection function test can be performed. Under this state, all indicator lights 28 are off. When the channel selection switch 26 is turned on here, the base unit CP
A test signal including selected handset number information is sent from U111 to control lines L1 and L2. Then, the relay CPU 19 compares the handset number of the sent test signal with the handset number set in the handset number setting section 18, and if the two match, sends the test signal to the base phone CPU 4. Sends back a response signal. Therefore, when this response signal is received, the indicator light 28 corresponding to the selected slave unit lights up. However, if no response signal is returned from any repeater 17, the indicator light 28 corresponding to the selected slave device remains off. If this operation is performed for all the channel selection switches 26.

Only the indicator light 28 corresponding to the handset number set in the handset number setting section 18 lights up, and the indicator light 28 corresponding to the handset number that is not set remains off. By checking whether this lighting pattern is on both sides of the number setting meter, you can check whether the handset number setting to the handset number setting section 18 is correct or not, and also whether the handset number setting is correct or not via the control lines L1 and L2. It is possible to confirm whether the transmission functions of both the base unit 11 and the repeater 17 are correct. By doing this, you can select 8 channels! Ability tests can be conducted.

In the above embodiment, the case where the channel selection switch 26 of the channel selection section 13 is used to conduct the channel selection function test has been explained, but a call termination switch (necessary to perform the intercom function) which is almost equivalent to this is used. (one of the switches) and a power switch may be used together. That is, when performing a channel selection function test on the intercom device [10], it is sufficient to turn on the power switch of the base unit 11 while pressing the end call switch, while on the other hand, when using the intercom device 10 as a normal intercom, The call end switch may be pressed during the channel selection function test.

Furthermore, in the above embodiment, the case where access to the handset is manually performed has been explained, but in order to perform the one-channel selection function test, the test procedure is programmed into the base unit CPU 14.
The test signal may be automatically sent to the repeater CPU 19 according to the program.

Next, the calling operation of this intercom device will be explained. When the starting unit 12 is not operating, the slave unit 22
When there is a call, the signal is sent to repeater 17, control line L
1, it reaches the VA machine 11 via L2, turns on the indicator light 28 corresponding to the atom @22, and sounds the ring tone to call the base machine 11. The base unit 11 turns on the channel selection switch 26 corresponding to the indicator light 28 to communicate with the slave unit 22.

Conversely, when calling a specific handset 22, turn on the channel selection switch 26 corresponding to the handset 22, and the signal is transmitted to each repeater 17 via the control lines L1 and L2. It is compared with the handset number set in the handset number 18, and if they match, the handset interface circuit 20 is controlled to call the corresponding handset 22 and make a conversation.

[Effects of the Invention] As is clear from the above embodiments, the intercom device of the present invention makes it possible to test the function of the activation section.
The channel selection section outputs a test signal including the selected handset number information, the base unit CPU sends the test signal to the line, and the handset number setting section assigns the handset number to the handset, and transmits the relay number. C.P.
U compares the handset number with the handset number of the test signal, and if they match, sends a response signal back to the base unit CPH, and the 1 display section indicates an indicator light corresponding to the selected handset. Since the configuration is configured to light up, you can test whether the handset number set on the repeater is correct for the numbering plan, and whether there are any abnormalities in bidirectional signal transmission between the base unit and the repeater. This has the effect that it can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an intercom device according to the present invention, FIG. 2 is a flow chart showing the operating procedure of the intercom device according to the present invention, and FIG. 3 is a block diagram showing the configuration of a conventional intercom device. 10...Intercom device 12...Starting unit 13...Tuning selection unit 14...CPU for main unit 15... Display section 18...Slave unit number setting section 19...CPU for repeater 22...Slave unit Ll, Ll...Line

Claims (1)

[Claims] an activation unit that enables a channel selection function test; a tuning unit that outputs a test signal including selected handset number information while the activation unit is activated; and the test output from the tuning unit. A main unit CPU that processes the signal and sends it to the line,
A handset number setting section that assigns a handset number to each handset based on a number setting plan; The repeater CPU compares the test signal with the handset number of the test signal, and if they match, sends a response signal back to the base CPU. An intercom device comprising: a display unit that lights up an indicator light corresponding to a handset.