JP6886052B1 - Emergency phone inspection methods, emergency phone systems, and emergency phones - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform an inspection reproducing an operation when using an emergency telephone. SOLUTION: This is an inspection method of an emergency telephone connected to a reception desk via an emergency telephone line, and a start signal for instructing the emergency telephone to start an inspection via a telephone line different from the emergency telephone line is transmitted. In the emergency telephone that transmits and receives the start signal, the hook member that switches on / off the switch that connects the emergency telephone and the emergency telephone line is mechanically moved from the position where the switch is turned off to the position where the switch is turned on. Then, the emergency telephone and the reception desk are connected via the emergency telephone line, and the voice signal picked up by the handset is recorded and recorded while the voice is output from the handset of the emergency telephone connected to the emergency telephone line. The voice signal is played back on the emergency telephone and output to the emergency telephone line, and the hook member is mechanically moved from the position where the switch is turned on to the position where the switch is turned off to disconnect the emergency telephone from the emergency telephone line. This is how to check the emergency telephone. [Selection diagram] Fig. 5

Description

The present invention relates to an emergency telephone inspection method, an emergency telephone system, and an emergency telephone.

On roads such as expressways, emergency telephones are installed to contact road managers in the event of an emergency such as an accident. Road managers and others who have installed emergency telephones regularly inspect the emergency telephones so that they can always receive notifications of emergencies from the emergency telephones.

As one of the technologies related to the inspection of the emergency telephone, when the handset is in the on-hook state, that is, when the user receives a call from the test machine when the test machine is not in use, the handset is pseudo-off-hook state. A telephone to be tested for connecting a line with a testing machine is known (see, for example, Patent Document 1). In this type of telephone to be tested, the handset is put into a pseudo-off-hook state, so that an inspection worker or the like can perform a telephone test remotely without turning the handset off-hook.

Japanese Unexamined Patent Publication No. 2013-192069

However, in the above-mentioned telephone under test, the actual state of the handset under test is the on-hook state. Therefore, it is necessary for the worker to pick up the handset for each telephone to check whether or not the on-hook state is changed to the off-hook state when the user picks up the handset.

In view of the above circumstances, one object of the present invention is to provide a technique capable of easily performing an inspection that reproduces the operation when using an emergency telephone.

The method of inspecting an emergency telephone according to one aspect is a method of inspecting an emergency telephone connected to a reception desk via an emergency telephone line, and is an object of inspection via a telephone line different from the emergency telephone line. A hook member that transmits a start signal instructing the start of inspection to the emergency telephone selected in the above and switches on / off the switch connecting the emergency telephone and the emergency telephone line in the emergency telephone that receives the start signal. , The emergency telephone is connected to the emergency telephone line by mechanically moving from the position where the switch is turned off to the position where the switch is turned on, and the emergency telephone and the reception desk are connected via the emergency telephone line. Then, the voice signal picked up by the handset is recorded in a state where the voice is output from the handset of the emergency telephone connected to the emergency telephone line, and the recorded voice signal is reproduced by the emergency telephone to reproduce the emergency. Inspection of the emergency telephone that outputs to the telephone line and mechanically moves the hook member from the position where the switch is turned on to the position where the switch is turned off to disconnect the emergency telephone from the emergency telephone line. The method.

The emergency telephone system according to one embodiment includes a reception stand and a plurality of emergency telephones connected via an emergency telephone line, and a telephone line different from the emergency telephone line connected to the plurality of telephones. Including an emergency telephone system, at least one of the plurality of emergency telephones is a receiver that receives a start signal instructing the start of inspection transmitted via the other telephone line. A solenoid that mechanically moves a hook member that switches on / off a switch that connects the emergency telephone to the emergency telephone line between a position where the switch is turned off and a position where the switch is turned on, and the start signal. Is received, the solenoid is activated, the hook member is mechanically moved from the position where the switch is turned off to the position where the switch is turned on, and the emergency telephone is received via the emergency telephone line. The voice signal picked up by the transmitter is recorded while the voice is output from the first control unit connected to the stand and the handset of the emergency telephone connected to the emergency telephone line, and the recorded voice signal is recorded. The emergency telephone and the emergency telephone are stopped, the hook member is mechanically moved from the position where the switch is turned on to the position where the switch is turned off, and the emergency telephone and the emergency telephone are stopped. It is an emergency telephone system including a second control unit that disconnects from the line.

The emergency telephone according to one aspect is an emergency telephone connected to the reception desk via an emergency telephone line, and starts instructing the start of an inspection transmitted via a telephone line different from the emergency telephone line. The receiver that receives the signal and the hook member that switches on / off the switch that connects the emergency telephone to the emergency telephone line are mechanically moved between the position where the switch is turned off and the position where the switch is turned on. The solenoid to be operated and the solenoid are activated when the start signal is received, and the hook member is mechanically moved from the position where the switch is turned off to the position where the switch is turned on, via the emergency telephone line. The voice signal picked up by the handset is recorded while the voice is output from the first control unit that connects the emergency telephone to the reception stand and the handset of the emergency telephone connected to the emergency telephone line. The recording unit that reproduces the recorded voice signal on the emergency telephone, the solenoid is stopped, and the hook member is mechanically moved from the position where the switch is turned on to the position where the switch is turned off. It is an emergency telephone including a second control unit for disconnecting the emergency telephone and the emergency telephone line.

According to the above-described aspect, an inspection that reproduces the operation when using the emergency telephone can be easily performed remotely.

It is the schematic explaining an example of an emergency telephone system. It is the schematic explaining the structural example of the emergency telephone system which concerns on one Embodiment. It is the schematic explaining the circuit configuration example of the emergency telephone 2 which concerns on one Embodiment. It is a schematic diagram explaining the on / off switching method of the hook switch of the emergency telephone which concerns on one Embodiment. It is a sequence diagram explaining the inspection method of the emergency telephone in the emergency telephone system which concerns on one Embodiment.

Hereinafter, embodiments of an emergency telephone system and an emergency telephone inspection method according to the present invention will be described in detail with reference to the drawings. In the following description, detailed description of well-known configurations and operations in conventional emergency telephone systems and emergency telephones will be omitted.

FIG. 1 is a schematic diagram illustrating an example of an emergency telephone system. FIG. 1 illustrates an emergency telephone system 1 including a plurality of emergency telephones 2 installed in a highway network.

The plurality of emergency telephones 2 in the emergency telephone system 1 are installed in, for example, an area under the jurisdiction of the control center 3 in the highway network. The plurality of emergency telephones 2 are grouped into a plurality of blocks 4 so that the number of emergency telephones 2 included in one block 4 is equal to or less than a predetermined maximum number (for example, 9). A plurality of emergency telephones 2 included in one block 4 are connected to a line monitoring device (L-SV: Line-Super Supervisor) 6 by a single emergency telephone line 5. The track monitoring device 6 is a device that monitors the emergency telephone line 5, and is installed, for example, in a communication machine room 7 or the like along a road, in the vicinity of a service area, a parking area, a tollhouse, or the like. The emergency telephone line 5 is connected to the reception desk 301 of the control center 3 via a line monitoring device 6, an automatic exchange facility (PBX: Private (automatic) Branch eXchange), etc., which is not shown in FIG. The plurality of emergency telephones 2 included in one block 4 are connected to the emergency telephone line 5 in such a manner that two or more emergency telephones 2 cannot be connected to the reception desk 301 at the same time.

The emergency telephone 2 included in the emergency telephone system 1 illustrated in FIG. 1 includes, for example, a telephone body and a handset including a handset and a handset. A hook member for switching on / off of the hook switch is movably attached to the housing of the telephone body. The hook member, for example, turns off the hook switch when the handset is hung on the handset receiving part extending to the outside of the telephone body, and turns on the hook switch when the handset is picked up from the handset receiving part. It is composed. When the hook switch is turned off, the connection with the reception desk 301 via the emergency telephone line 5 is disconnected (hereinafter referred to as "on-hook state"). When the hook switch is turned on, the handset 302 is connected to the reception desk 301 via the emergency telephone line 5 (hereinafter referred to as "off-hook state"), and the staff in the control center 3 uses the handset 302 connected to the reception desk 301. Taking up, it becomes possible to make a call between the user of the emergency telephone 2 and the staff in the control center 3.

In this type of emergency telephone system 1, since a plurality of emergency telephones 2 are dispersed over a range of several km, it is very inefficient for the staff to go to the installation location of each emergency telephone 2 at the time of inspection. Therefore, in the emergency telephone system 1 according to the present embodiment, as described below, each emergency telephone 2 is operated and inspected remotely (specifically, the control center 3).

FIG. 2 is a schematic diagram illustrating a configuration example of an emergency telephone system according to an embodiment. Although the emergency telephone system 1 of FIG. 2 shows only one block 4 of the emergency telephone 2, the number of blocks 4 of the emergency telephone 2 may be two or more.

The emergency telephone system 1 according to the present embodiment includes a reception stand 301, a handset 302, a business telephone 303, a test control device 304, and a first automatic exchange facility (PBX) 305 installed in a control center 3 such as a traffic control room. including. Further, the emergency telephone system 1 includes a second automatic exchange facility (PBX) 8, a line monitoring device (L-SV) 6, and a line control device 9 installed in a communication machine room 7 or the like. Further, the emergency telephone system 1 includes a block 4 including a plurality of emergency telephones 2. The emergency telephone system 1 may include other devices (optical transmission equipment) for transmitting and receiving information and data, such as a trunk line transmission device and a local transmission device, which are not shown in FIG.

The reception desk 301 installed in the control center 3 receives calls from all the emergency telephones 2 included in the emergency telephone system 1. The emergency telephone 2 is connected to the reception stand 301 via the emergency telephone line 5, the line monitoring device 6, the second automatic exchange facility 8, the first automatic exchange facility 305, and the test control device 304. The test control device 304 is a device that controls a remote operation test (inspection) of the emergency telephone 2 included in the emergency telephone system 1, and includes, for example, a computer and a program that causes the computer to execute the control process described below. Can be realized by.

The reception stand 301 outputs the voice signal (received signal) from the emergency telephone 2 to the receiver of the handset 302, and outputs the voice signal (transmitted signal) picked up by the handset 302 to the emergency telephone 2.

The business telephone 303 makes a call with another telephone via a business telephone line different from the emergency telephone line 5. Further, the business telephone 303 is connected to the line control device 9 by the business telephone line 10 via the test control device 304, the first automatic exchange facility 305, the second automatic exchange facility 8, and the line control device 9. A signal instructing the start of inspection can be transmitted to one or more emergency telephones 2. The line control device 9 is a device that controls the call of the emergency telephone 2 connected by the business telephone line 10 and the connection with the business telephone 303 based on the control signal from the business telephone 303 or the test control device 304. For the business telephone line 10 that connects the line control device 9 and the emergency telephone 2, for example, a spare emergency telephone line can be used. A plurality of emergency telephones 2 included in one block 4 are connected to the line control device 9 by a single business telephone line 10.

When inspecting the emergency telephone 2 (operation test) in the emergency telephone system 1 of the present embodiment, first, a process of switching the emergency telephone 2 selected as the inspection target from the on-hook state to the off-hook state is performed. This process is performed, for example, by a staff member of the control center 3 operating the business telephone 303. The person in charge of the control center 3 operates the business telephone 303 to call the line control device 9, and transmits a signal for identifying the emergency telephone 2 selected as the inspection target through the business telephone line 10. When the emergency telephone 2 selected as the inspection target receives the signal from the business telephone 303, the hook member on which the handset is hung is mechanically moved from the on-hook state position to the off-hook state position. That is, the emergency telephone 2 automatically reproduces an off-hook state substantially the same as when the user of the emergency telephone 2 picks up the handset, based on a remote operation, and via the emergency telephone line 5. Connect to the reception desk 301. When the emergency telephone 2 and the reception desk 301 are connected via the emergency telephone line 5, the connection between the business telephone 303 and the emergency telephone 2 via the business telephone line 10 is released.

Further, in the emergency telephone system 1 of the present embodiment, when the emergency telephone 2 and the reception stand 301 are connected via the emergency telephone line 5 by the above remote operation, the handset provided on the handset of the emergency telephone 2 is used. The test voice is output. The test voice includes, for example, a voice signal picked up by the handset 302 of the control center 3, a voice signal output by the reception stand 301 or the test control device 304, and the like. Further, the test voice includes, for example, an acoustic signal of a predetermined frequency output by an oscillator provided in the emergency telephone 2. During the period when the test voice is output from the handset handset to the external space of the emergency telephone 2, the emergency telephone 2 uses a recording unit (recorder) provided on the emergency telephone 2 to collect the voice signal picked up by the handset handset. Record. When the output of the test voice and the recording by the recording unit are completed, the emergency telephone 2 reproduces the recorded acoustic data and outputs the reproduced voice to the emergency telephone line 5. The reproduced voice output to the emergency telephone line 5 is transmitted to the reception stand 301 and the handset 302 via the line monitoring device 6, the second automatic exchange facility 8, the first automatic exchange facility 305, and the test control device 304. To.

The staff at the reception desk 301 or the control center 3 determines whether or not there is an abnormality in the operation of the emergency telephone 2 selected as the object of inspection based on the reproduced voice from the emergency telephone 2, and the emergency telephone 2 including the emergency telephone line 5. It is determined whether or not there is an abnormality in the communication path between the telephone and the reception desk 301. After the determination, when the handset 302 of the control center 3 is put into the on-hook state and the connection between the emergency telephone 2 and the reception stand 301 is released, the emergency telephone 2 mechanically moves the hook member from the off-hook state position to the on-hook state position. Move to and turn off the hook switch.

FIG. 3 is a schematic diagram illustrating a circuit configuration example of the emergency telephone 2 according to the embodiment. FIG. 3 shows a circuit configuration example of the first-stage emergency telephone 2 among a plurality of emergency telephones 2 included in one block connected to the line monitoring device 6 by a single emergency telephone line 5. There is.

The emergency telephone 2 includes a first PB receiver (PB_REC1) 201 connected to the line control device 9 by a business telephone line 10, a first microcomputer (microcomputer 1) 202, a solenoid 203, a hook switch 204, and the like. Includes speech network 205. The first PB receiving unit 201 receives the ID number of the emergency telephone 2 transmitted by the business telephone line 10 via the line control device 9, and transfers it to the first microcomputer 202. The ID number transmitted by the business telephone line 10 is a number that identifies the emergency telephone 2 selected as the inspection target, and is also transmitted to the other emergency telephone 2 in the subsequent stage of the emergency telephone 2 illustrated in FIG. The first microcomputer 202 compares the ID number transferred from the first PB receiving unit 201 with the ID number (own machine number 206) assigned to the emergency telephone 2 including the first microcomputer 202. When both match, this is an example of a first control unit that activates the solenoid 203. The solenoid 203 is attached to a hook member that switches the hook switch 204 on and off so that the hook member moves in the direction in which the hook switch 204 is turned on when the solenoid 203 is activated. The hook member has, for example, a portion on which the handset 207 of the emergency telephone 2 is hung, moves to a position where the hook switch 204 is turned off when the handset 207 is hung, and the hook switch 204 is picked up when the handset 207 is picked up. Is attached to the main body of the emergency telephone 2 so as to move to the position where is turned on. When the hook switch 204 is turned on, the speech network 205 and the line monitoring device 6 are connected via the emergency telephone line 5. The speech network 205 outputs an audio signal (received signal) transmitted from the handset 302 or the like of the control center 3 via the line monitoring device 6 or the like to the handset 208 of the handset 207, and picks up the sound by the handset 209 of the handset 207. The generated audio signal (transmission signal) is output to the hand set 302 or the like of the control center 3 via the line monitoring device 6 or the like.

Further, the emergency telephone 2 includes a second PB receiver (PB_REC2) 210, a second microcomputer (microphone 2) 211, a first selector (SE1) 212, a second selector (SE2) 213, and a second. 1 amplifier (PGAMP1) 214, 2nd amplifier (PGAMP2) 215, recorder 216, 1st to 4th switches 217 to 220, oscillator (OSC) 221 and 2nd PB transmitter (PB_OSC2) Includes 222 and.

In the speech network 205, when the solenoid 203 is activated and the hook switch 204 is turned on, the emergency telephone 2 is connected to the reception stand 301 by the emergency telephone line 5 to the second microcomputer 211 via the second PB receiver 210. Notify that you are connected. The second microcomputer 211 stops the output of the start signal from the first microcomputer 202 to the solenoid 203, and outputs the start signal from the second microcomputer 211 to the solenoid 203. Further, when the inspection of the emergency telephone 2 is completed, the second microcomputer 211 stops the output of the activation signal to the solenoid 203 and disconnects the emergency telephone 2 from the emergency telephone line 5. The second microcomputer 211 is an example of a second control unit that stops the solenoid 203 to disconnect the emergency telephone 2 and the emergency telephone line 5.

The first switch 217 and the second switch 218 switch the transmission path of the audio signal to be output to the handset (receiver) 208 of the handset 207 of the emergency telephone 2. When the emergency telephone 2 and the reception desk 301 are connected by the user picking up the handset 207, the first switch 217 and the second switch 218 receive an audio signal (received signal) received by the speech network 205. The speech network 205 and the handset 208 are connected so that they are output to the handset 208 as they are. On the other hand, at the time of inspection (that is, when the emergency telephone 2 and the reception stand 301 are connected by activating the solenoid 203), the first switch 217 and the second switch 218 are voices received by the speech network 205. The speech network 205 and the handset 208 are connected so that the signal is output to the handset 208 via the first selector 212 and the first amplifier 214. The first selector 212 switches between an audio signal from the speech network 205 input via the first switch 217 and an acoustic signal output by the oscillator 221. Oscillator 221 outputs an acoustic signal of a predetermined frequency (for example, 400 Hz). The first amplifier 214 amplifies the audio signal or acoustic signal output from the first selector 212.

The third switch 219 and the fourth switch 220 switch the transmission path of the audio signal picked up by the transmitter (microphone) 209 of the handset 207 of the emergency telephone 2. When the emergency telephone 2 and the reception stand 301 are connected by the user picking up the handset 207, the third switch 219 and the fourth switch 220 make a speech as it is with the audio signal picked up by the transmitter 209. The transmitter 209 and the speech network 205 are connected so as to be input to the network 205. On the other hand, at the time of inspection, in the third switch 219 and the fourth switch 220, the audio signal picked up by the transmitter 209 is transmitted to the speech network 205 via the recorder 216, the second amplifier 215, and the second selector 213. The transmitter 209 and the speech network 205 are connected so as to be input to. The recorder 216 records the audio signal picked up by the transmitter 209 and reproduces the recorded audio signal. The second amplifier 215 amplifies the line loss portion of the audio signal reproduced by the recorder 216 based on the line loss setting 223. The second selector 213 switches between the audio signal input via the second amplifier 215 and the PB signal output by the second PB transmitter 222. The PB signal output by the second PB transmission unit 222 is, for example, a signal for notifying the reception desk 301 of the end of reproduction (test end) when the reproduction of the audio signal recorded by the recorder 216 is completed.

Further, the emergency telephone 2 includes a motion sensor 224 and a first PB transmitter (PB_OSC1) 225. The motion sensor 224 is a sensor that detects the presence or absence of a person in front of the emergency telephone 2, and is connected to the first microcomputer 202. When the human sensor 224 detects that there is a person in front of the emergency telephone 2 during the inspection, the first microcomputer 202 notifies the second microcomputer 211 of the detection result, and the solenoid 203 by the second microcomputer 211. Stops the start of and turns off the hook switch 204. Further, when the motion sensor 224 detects that a person is in front of the emergency telephone 2 when the hook switch 204 is off, the first microcomputer 202 causes the first PB transmitter 225 to output a PB signal. .. The PB signal output by the first PB transmission unit 225 is transmitted to another emergency telephone 2 connected to the same emergency telephone line 5 via the business telephone line 10. The PB signal output by the first PB transmitter 225 forces the inspection of the emergency telephone 2 when there is an emergency telephone 2 under inspection in the same block 4 connected to the same emergency telephone line 5. It is a signal to end. That is, when the emergency telephone 2 under inspection receives a PB signal from another emergency telephone 2 by the first PB receiving unit 201, the solenoid 203 by the first microcomputer 202 or the second microcomputer 211 Stops the activation of and turns off the hook switch 204.

As described above, the emergency telephone 2 in the emergency telephone system 1 of the present embodiment is connected to the reception desk 301 of the control center 3 via the emergency telephone line 5 when the hook switch 204 is turned on. The on / off of the hook switch 204 of the emergency telephone 2 is switched by changing the position of the hook member movably attached to the housing of the telephone body as described above.

FIG. 4 is a schematic view illustrating a method of switching on / off of the hook switch of the emergency telephone according to the embodiment. FIG. 4 shows only the mechanism for moving the hook switch 204, the hook member 250, the handset 207, and the hook member 250 in the emergency telephone 2. The front direction and the back direction shown in FIG. 4 are directions toward the user and directions away from the user in the telephone body (not shown) as seen by the user facing the emergency telephone 2, respectively. Further, the upward direction and the downward direction shown in FIG. 4 are vertically above and vertically below in the space where the emergency telephone 2 is installed, respectively.

The hook member 250 can rotate around a rotation axis extending in a horizontal direction (more specifically, a left-right direction as seen from the user facing the emergency telephone 2) with respect to a housing (not shown) of the telephone body. It is attached to the phone body. That is, the hook member 250 illustrated in FIG. 4 can be rotated clockwise and counterclockwise with the shaft 251 as a fulcrum.

The hook member 250 includes a first arm portion 252 extending in the depth direction from the shaft 251, a second arm portion 253 extending downward from the shaft 251 and a third arm portion 254 extending in the front direction from the shaft 251. Has. The first arm portion 252 and the second arm portion 253 are located inside the housing of the telephone body. The third arm portion 254 has a handset receiving portion 255 extending to the outside of the housing.

One end of a spring 256 that urges the hook member 250 in the clockwise direction in FIG. 4 is attached to the first arm portion 252. The spring 256 is such that when the handset 207 is hung on the third arm portion 254, the second arm portion 253 is separated from the hook switch 204 by the load received from the handset 207 by the third arm portion 254. When the 204 is turned off and the handset 207 is picked up, the second arm portion 253 comes into contact with the hook switch 204 and the hook switch 204 is turned on.

Further, the first arm portion 252 is attached with a solenoid 203 that rotates the hook member 250 in a state where the handset 207 is hung on the third arm portion 254 in the clockwise direction in FIG. The solenoid 203 includes, for example, a coil 261 and a magnetic member 262, and a mounting member 263 that attaches the magnetic member 262 to the first arm portion 252. The solenoid 203 is attached, for example, below the first arm portion 252 in such a direction that a magnetic field that moves the magnetic member 262 downward is generated when a current in a predetermined direction is applied to the coil 261.

In the emergency telephone 2 according to the present embodiment, no current is applied to the coil 261 of the solenoid 203 during non-inspection. Therefore, when the emergency telephone 2 is not inspected and the handset 207 is hung on the third arm portion 254, the hook member 250 is separated from the hook switch 204 by the second arm portion 253. Then, the hook switch 204 is held at a position where it is turned off (rotational position shown by a solid line in FIG. 4).

On the other hand, in the emergency telephone 2 according to the present embodiment, the solenoid 203 is activated by applying a current to the coil 261 of the solenoid 203 at the time of inspection. At this time, the coil 261 is in a rotational position where the second arm portion 253 abuts on the hook switch 204 to turn on the hook switch 204 while the hand set 207 is hung on the third arm portion 254. A current having a size capable of rotating and moving the hook member 250 is applied. This allows the operator to rotate the hook member 250 to turn on the hook switch 204 without having to pick up the handset 207. Therefore, the emergency telephone 2 according to the present embodiment can check whether or not the handset 207 is connected to the reception stand 301 when the handset 207 is picked up by remotely inputting a signal for activating the solenoid 203. ..

Further, the emergency telephone 2 according to the present embodiment has the recorder 216 as described above, picks up the voice output from the handset 208 of the handset 207 at the time of inspection by the handset 209, and collects the picked up voice. It can be recorded and played back. Therefore, in the emergency telephone system 1 according to the present embodiment, the handset 207 of the emergency telephone 2 and the emergency telephone line 5 connecting the emergency telephone 2 and the reception stand 301 can also be inspected by remote control. .. Hereinafter, an example of an inspection method of the emergency telephone 2 in the emergency telephone system 1 according to the present embodiment will be described with reference to FIG.

FIG. 5 is a sequence diagram illustrating a method of inspecting an emergency telephone in the emergency telephone system according to the embodiment. In the inspection work of the emergency telephone 2 illustrated in FIG. 5, for example, all the emergency telephones 2 in one block including a plurality of emergency telephones 2 to be inspected are not connected to the reception stand 301 (standby). It is carried out when the state).

When inspecting the emergency telephone 2 in the emergency telephone system 1 of the present embodiment, first, an extension call is made from the business telephone 303 of the control center 3 to the line control device 9 (step S1). An inspector such as a staff member of the control center 3 raises the handset of the business telephone 303 and confirms that a dial tone (DT) can be heard, and then, for example, operates the push button of the handset to operate the extension number of the line control device 9. Dial (call number). When the extension number is dialed, an extension call signal (for example, a 16 Hz call signal) is transmitted from the business telephone 303 to the line control device 9 via the first automatic exchange facility 305, the second automatic exchange facility 8, and the like. , A ringing tone (RBT) is output from the handset handset.

When the line control device 9 detects the call signal from the business telephone line 303 several times, it returns a response to the business telephone 303 (step S2) and connects the business telephone 303 to the line control device 9. At this time, the line control device 9 releases the insulation from the business telephone line 10 connected to the emergency telephone 2 and extends the business telephone line to the emergency telephone 2 side.

After the business telephone 303 and the line control device 9 are connected, the ID number is transmitted from the business telephone 303 to the line control device 9 via the first automatic exchange facility 305, the second automatic exchange facility 8, and the like, and the ID number is transmitted. The ID number is transferred from the line control device 9 to the plurality of emergency telephones 2 through the business telephone line 10 (step S3). The ID number is a number that identifies the emergency telephone 2 selected as the inspection target. For example, after the staff confirms that the ringing tone of the handset has stopped, it is input (dial) by operating the push button of the handset. To do. The line control device 9 disconnects the business telephone line 10 after a predetermined period (for example, 3 seconds) elapses after transferring the ID number to the emergency telephone 2 (step S4).

Each of the plurality of emergency telephones 2 determines whether or not the ID number transmitted by the business telephone line 10 matches the ID number (own machine number) of the own machine (step S5). When the emergency telephone 2 receives the ID number in the first PB receiving unit 201, the emergency telephone 2 transfers the ID number to the first microcomputer 202, and determines whether or not the received ID number matches the own machine number 206. .. If they do not match (step S5; NO), the emergency telephone 2 continues the standby state without executing the process related to the inspection.

When the ID numbers match (step S5; YES), the emergency telephone 2 activates the solenoid 203 by the first microcomputer 202 (step S6). When the solenoid 203 is activated, the hook member 250 mechanically rotates, and the second arm portion 253 of the hook member 250 turns on the hook switch 204. The emergency telephone 2 with the hook switch 204 turned on calls the reception stand 301 via the line monitoring device 6, the second automatic exchange facility 9, the first automatic exchange facility 305, the test control device 304, and the like (step). S7). After that, the emergency telephone 2 (emergency telephone to be inspected) with the hook switch turned on is supplied with power to the second microcomputer 211, and the second microcomputer 211 is activated. After starting, the second microcomputer 211 stops applying the current to the coil 261 of the solenoid 203 to the first microcomputer 202, and starts applying the current to the coil 261 of the solenoid 203 by itself, so that the hook member 250 Keeps the hook switch 204 turned on.

When the reception desk 301 responds to the call from the emergency telephone 2 and receives the test start operation (step S8), the reception desk 301 transmits a signal instructing the test control device 304 to start the test (step S9). The signal instructing the start of the test includes, for example, information identifying the emergency telephone 2 selected for inspection. The test start operation is, for example, an operation on the reception stand 301 or the button switch provided on the handset 302 connected to the reception stand 301. When the test control device 304 receives the signal instructing the start of the test from the reception stand 301, the test control device 304 receives the first automatic exchange facility 305, the second automatic exchange facility 8, and the line monitoring for the emergency telephone 2 to be inspected. A PB signal that signals the start of the test is transmitted via the device 6, the emergency telephone line 5, and the like (step S10).

When the emergency telephone 2 selected as the inspection target receives the PB signal from the test control device 304, the recorder 216 performs a recording process (step S11). The emergency telephone 2 transfers the PB signal received by the speech network 205 to the second microcomputer 211 via the second PB receiving unit 210, and confirms the PB number in the second microcomputer 211. After that, the emergency telephone 2 switches the third switch 219 to the recorder 216 side, switches the fourth switch 220 to the second selector 213 side, and records the audio signal picked up by the transmitter 209 of the handset 207. The process of recording by 216 is started.

At this time, for example, the emergency telephone 2 first records an audio signal from the reception desk 301 in a predetermined first period (for example, 5 seconds), and then in a predetermined second period (for example, 3 seconds). The audio signal output by the oscillator 221 (for example, an acoustic signal of 400 Hz) is recorded. When the emergency telephone 2 starts the recording process, it first switches the first switch 217 to the first selector 212 side and the second switch 218 to the first amplifier 214 side, and receives the reception stand through the emergency telephone line 5. The test audio signal (received signal) transmitted from 301 is amplified by the first amplifier 214 and output as audio from the handset 208 of the handset 207. The test audio signal transmitted from the reception desk 301 is, for example, a voice signal such as a predetermined word or sentence issued by a staff member of the control center 3 toward the handset 302 connected to the reception desk 301. That is, the reception stand 301 transmits a signal instructing the test start to the test control device 304, and then outputs a test voice signal (test voice) to the emergency telephone 2 (step S12). During the first period, the emergency telephone 2 converts the test audio signal transmitted from the reception desk 301 from 2 lines to 4 lines in the speech network 205, and amplifies the converted audio signal by the first amplifier 214. Is output from the handset 208. Then, when the first period elapses, the emergency telephone 2 switches the first selector 212, amplifies the audio signal emitted by the oscillator 221 by the first amplifier 214, and outputs it from the receiver 208. Then, when the second period elapses, the emergency telephone 2 ends the transmission of the audio signal by the oscillator 221 and ends the recording by the recorder 216.

When the recording process is completed, the emergency telephone 2 performs a reproduction process of reproducing the audio signal recorded by the recorder 216 and transmitting it to the reception desk 301 (step S13). In the reproduction process, for example, the emergency telephone 2 amplifies the audio signal reproduced by the recorder 216 by the second amplifier 215, converts it from 4 lines to 2 lines in the speech network 205, and outputs it to the emergency telephone line 5. .. The second amplifier 215 amplifies the line loss portion based on the line loss setting 223. The voice signal (reproduced voice) output to the emergency telephone line 5 is sent to the reception stand 301 via the line monitoring device 6, the second automatic exchange facility 8, the first automatic exchange facility 305, the test control device 304, and the like. It is transmitted (step S14). The audio signal transmitted to the reception stand 301 may be stored in the test control device 304, for example.

When the reproduction process is completed, the emergency telephone 2 switches the second selector 213 and outputs the PB signal output by the second PB transmission unit 222 to the emergency telephone line 5 (step S15). After that, the emergency telephone 2 switches the third switch 219 and the fourth switch 220 to the path side not via the recorder 216 and the second selector 213.

The reception desk 301 that has received the PB signal following the reproduced voice disconnects from the emergency telephone 2 currently being inspected via the emergency telephone line 5 (step S16). At this time, the lockout signal is transmitted to the emergency telephone 2 currently being inspected via the emergency telephone line 5 or the like (step S17). In the emergency telephone 2 that has received the lockout signal, for example, the power of the second microcomputer 211 is turned off, and the solenoid 203 is stopped (step S18). When the solenoid 203 is stopped, the hook member 250 that has turned on the hook switch 204 is in the direction in which the second arm portion 253 is separated from the hook switch 204 due to the load from the handset 207 placed on the third arm portion 254. Rotate (counterclockwise in FIG. 4). As a result, the emergency telephone 2 is put into a standby state by turning off the hook switch 204 (that is, disconnecting from the emergency telephone line 5).

After the inspection of one of the plurality of emergency telephones 2 is completed by the above procedure, the above processing is repeated while changing the ID number of the emergency telephone 2 to be inspected. Inspections for a plurality of emergency telephones 2 in the area to be performed can be sequentially performed by remote operation.

Further, although not shown in FIG. 5, when the motion sensor 224 of the emergency telephone 2 under inspection detects a person, the emergency telephone 2 may cancel the inspection. For example, when the first microcomputer 202 determines that a person has been detected based on the output of the motion sensor 224, the first microcomputer 202 sends a signal instructing the second microcomputer 211 to stop the solenoid 203. Output. When the second microcomputer 211 stops the solenoid 203, the hook switch 204 is turned off and the connection between the emergency telephone 2 and the emergency telephone line 5 is released. If the connection is disconnected during the inspection, then when the person (user) who detects it picks up the handset 207 of the emergency telephone 2 and reconnects the emergency telephone 2 and the reception desk 301, the staff at the control center 3 , It can be confirmed that the cause of the disconnection is not due to the abnormality of the emergency telephone 2. If the emergency telephone 2 and the reception desk 301 are not connected even after a predetermined period of time has passed after the connection was disconnected during the inspection, for example, the emergency telephone 2 may be inspected again. , It is possible to confirm the presence or absence of an abnormality in the emergency telephone 2.

Further, although not shown in FIG. 5, when the hook switch 204 of the emergency telephone 2 other than the emergency telephone 2 under inspection, which is included in one block 4, is turned on, the emergency telephone 2 under inspection is used. , Solenoid 203 may be stopped to stop the inspection. Here, the emergency telephone 2 different from the emergency telephone 2 under inspection includes, for example, the emergency telephone 2 in which the handset 207 of the emergency telephone 2 not under inspection is taken up and the hook switch 204 is turned on. By doing so, it is possible to give priority to notifying the control center 3 that an emergency has occurred, and it is possible to deal with the emergency at an early stage.

As described above, in the emergency telephone system 1 according to the present embodiment, information indicating that the telephone system 1 has been selected for inspection via a telephone line (business telephone line 10) different from the emergency telephone line 5 is input. The telephone 2 mechanically moves the hook member 250 that switches the hook switch 204 on and off, and switches the hook switch 204 from off to on. Therefore, the inspection of whether or not the operation of the hook member 250 in the emergency telephone 2 is normal is performed by a remote operation without the worker picking up the handset 207 of the emergency telephone 2 and inspecting it. be able to. Further, in the emergency telephone system 1 according to the present embodiment, the voice picked up by the transmitter 209 while outputting the test voice signal transmitted from the reception stand 301 to the emergency telephone 2 from the receiver 208 of the emergency telephone 2. A signal is recorded, and the recorded audio signal is reproduced and transmitted to the reception desk 301. Therefore, it is possible to check whether or not the transmission path from the reception stand 301 to the emergency telephone 2 including the emergency telephone line 5 is normal by remote control. Further, the emergency telephone 2 records the audio signal picked up by the transmitter 209 while outputting the audio signal output by its own oscillator 221 as another test audio signal from the handset 208 of the emergency telephone 2. The recorded audio signal is reproduced and transmitted to the reception desk 301. Therefore, when it is determined that there is an abnormality in the transmission path based on the voice signal (reproduced voice) transmitted from the emergency telephone 2 to the reception desk 301, for example, the route from the reception desk 301 to the emergency telephone 2 or the emergency telephone It is possible to estimate where the abnormality is in the route from the handset 207 of 2 and the emergency telephone 2 to the reception desk 301. Therefore, in the emergency telephone system 1 according to the present embodiment, the inspection work related to the transmission path between the emergency telephone 2 including the emergency telephone line 5 and the reception desk 301 and the operation of the emergency telephone 2 can be performed by remote operation. This makes it possible to efficiently perform inspection work on a plurality of emergency telephones 2 scattered over a wide area.

Further, as described above, the emergency telephone 2 according to the present embodiment outputs the audio signal amplified by the first amplifier 214 in the recording process (step S11) at the time of inspection from the handset 208 of the handset 207, and at the time of inspection. In the reproduction process (step S13), the audio signal amplified by the second amplifier 215 is output to the emergency telephone line 5. Further, in the recording process at the time of inspection, an audio signal having a predetermined frequency output by the oscillator 221 of the emergency telephone 2 is recorded, which is different from the audio signal transmitted from the reception desk 301 via the emergency telephone line 5. Therefore, it is possible to appropriately check the voice quality of the emergency telephone 2 having an indefinite ambient noise level, such as the emergency telephone 2 installed in the highway network.

Further, in the emergency telephone system 1 according to the present embodiment, as described above, when a person who uses the emergency telephone 2 for notifying the occurrence of an emergency appears, the inspection is stopped and the occurrence of the emergency occurs. Notifications can be prioritized. Therefore, it is possible to deal with an emergency situation such as a traffic accident at an early stage.

The configuration of the emergency telephone system 1, the operation of the emergency telephone 2, and the inspection method described above are only one embodiment of the configuration of the emergency telephone system 1 according to the present invention, the operation of the emergency telephone 2, and the inspection method. .. The configuration of the emergency telephone system 1 according to the present invention, the operation of the emergency telephone 2, and the inspection method are not limited to the above-described embodiments, and can be appropriately changed without departing from the gist of the present invention. For example, in the sequence diagram illustrated in FIG. 5, one or more of the processes performed by using the business telephone 303 may be performed by using the test control device 304. For example, in the process of selecting the emergency telephone 2 to be inspected and transmitting the ID number (steps S1 to S3 in FIG. 5), a trigger for starting the test is input to the test control device 304 from the reception desk 301 or the like. This may be performed by the test control device 304. Further, for example, the circuit configuration of the emergency telephone 2 is not limited to the circuit configuration illustrated in FIG. 3, and can be changed as appropriate. Further, in the emergency telephone 2, the hook member 250 may be switched on / off by the translational movement of the hook member 250, or the hook member 250 may be moved by using a power different from the solenoid 203. You may. Further, when the line control device 9 detects a busy tone (BT) output to the emergency telephone line 5 from any of a plurality of emergency telephones 2 connected through the business telephone line 10, the business telephone line 10 May be configured to disconnect.

1 Emergency telephone system 2 Emergency telephone 3 Control center 4 Block 5 Emergency telephone line 6 Line monitoring device 7 Communication machine room 8 Second automatic switching device 9 Line control device 10 Business telephone line 201 First PB receiver 202 First Microcomputer 203 Solenoid 204 Hookswitch 205 Speech network 206 Own number 207 Handset 208 Handset 209 Handset 210 Second PB receiver 211 Second microcomputer 212 First selector 213 Second selector 214 First amplifier 215 First 2 Amps 216 Recorder 217 First Switch 218 Second Switch 219 Third Switch 220 Fourth Switch 221 Solenoid 222 Second PB Transmitter 223 Line Loss Setting 224 Human Sensor 225 First PB Transmitter 250 Hook member 251 Shaft 252 First arm part 253 Second arm part 254 Third arm part 255 Receiving part 256 Spring 261 Coil 262 Magnetic member 263 Mounting member

Claims (14)

This is an inspection method for emergency telephones that are connected to the reception desk via an emergency telephone line.
A start signal instructing the start of the inspection is transmitted to the emergency telephone selected as the inspection target via a telephone line different from the emergency telephone line.
In the emergency telephone that receives the start signal, the hook member that switches on / off the switch that connects the emergency telephone and the emergency telephone line is mechanically moved from the position where the switch is turned off to the position where the switch is turned on. To connect the emergency telephone to the emergency telephone line,
The emergency telephone and the reception desk are connected via the emergency telephone line.
A voice signal picked up by the handset is recorded while the voice is output from the handset of the emergency telephone connected to the emergency telephone line.
The recorded audio signal is reproduced by the emergency telephone and output to the emergency telephone line.
A method for inspecting an emergency telephone, which comprises mechanically moving the hook member from the position where the switch is turned on to the position where the switch is turned off to disconnect the emergency telephone and the emergency telephone line. .. The emergency telephone is connected to the automatic exchange facility via the emergency telephone line, and is connected to the automatic exchange facility via another telephone line and a line control device that controls the telephone line.
The start signal is sent from a test control device that controls inspection of a business telephone or an emergency telephone connected to the line control device via the automatic exchange facility.
After the emergency telephone and the reception desk are connected via the emergency telephone line, the connection between the emergency telephone and the business telephone or the test control device via the other telephone line is released. The method for inspecting an emergency telephone according to claim 1. The process of recording the audio signal is
The handset outputs a first test sound transmitted from a test control device that controls inspection of the reception stand or the emergency telephone provided in the transmission path between the emergency telephone including the emergency telephone line and the reception stand. The first voice signal picked up by the handset in this state and the second test voice output by the oscillator of the emergency telephone are output from the handset and the second voice picked up by the handset. The method for inspecting an emergency telephone according to claim 1, wherein a signal is recorded. The method for checking an emergency telephone according to claim 3, wherein the process of recording the voice signal amplifies each of the first test voice and the second test voice and outputs the voice signal from the handset. The start signal according to any one of claims 1 to 4, wherein the start signal includes information for identifying one emergency telephone among a plurality of emergency telephones connected to a single emergency telephone line. How to check the emergency phone described. During the period during which the emergency telephone selected as the object of inspection among the plurality of emergency telephones is inspected, the emergency telephone and the emergency telephone line are used in the other emergency telephones among the plurality of emergency telephones. The method for inspecting an emergency telephone according to claim 5, wherein the inspection of the emergency telephone selected as the target of the inspection is stopped when the switch for connecting the telephone is switched from off to on. If it is detected that there is a person in front of the emergency telephone during the period during which the emergency telephone selected as the inspection target among the plurality of emergency telephones is being inspected, the inspection of the emergency telephone is stopped. The method for inspecting an emergency telephone according to claim 5, wherein the emergency telephone is inspected. At the time of inspection, the emergency telephone applies a current to the coil of the solenoid attached to the hook member to move the hook member from the position where the switch is turned off to the position where the switch is turned on, and moves the hook member to the coil. The method for inspecting an emergency telephone according to claim 1, wherein the application of the current is stopped and the hook member is moved from the position where the switch is turned on to the position where the switch is turned off. An emergency telephone system including a reception desk and a plurality of emergency telephones connected via an emergency telephone line, and a telephone line different from the emergency telephone line connected to the plurality of telephones.
At least one of the plurality of emergency telephones is
A receiver that receives a start signal instructing the start of inspection transmitted via the other telephone line, and a receiver.
A solenoid that mechanically moves a hook member that switches on / off a switch that connects the emergency telephone to the emergency telephone line between a position where the switch is turned off and a position where the switch is turned on.
When the start signal is received, the solenoid is activated, the hook member is mechanically moved from the position where the switch is turned off to the position where the switch is turned on, and the emergency telephone is connected via the emergency telephone line. With the first control unit that connects to the reception desk
A recording unit that records an audio signal picked up by a transmitter in a state where audio is output from the handset of the emergency telephone connected to the emergency telephone line, and reproduces the recorded audio signal on the emergency telephone.
A second control that stops the solenoid, mechanically moves the hook member from the position where the switch is turned on to the position where the switch is turned off, and disconnects the emergency telephone from the emergency telephone line. An emergency telephone system characterized by including a department. Intervening between one or more automatic exchange facilities intervening between the reception desk and the emergency telephone line, and between one of the one or more automatic exchange facilities and the other telephone line. Further includes a line control device to be used and a business telephone that can be connected to the line control device via the automatic exchange facility.
The emergency telephone system according to claim 9, wherein the start signal is transmitted from the business telephone to the emergency telephone via the line control device and the other telephone line. Intervening between one or more automatic exchange facilities intervening between the reception desk and the emergency telephone line, and between one of the one or more automatic exchange facilities and the other telephone line. Further includes a line control device for controlling the inspection and a test control device for controlling the inspection of the plurality of emergency telephones via the automatic exchange facility.
The emergency telephone system according to claim 9, wherein the start signal is transmitted from the test control device to the emergency telephone via the line control device and the other telephone line. The plurality of emergency telephones are grouped into one or more blocks with a predetermined maximum number or less of emergency telephones connected to the single emergency telephone line and the single separate telephone line as one block. The emergency telephone system according to any one of claims 9 to 11, wherein the emergency telephone system is characterized by the above. An emergency telephone that is connected to the reception desk via an emergency telephone line.
A receiver that receives a start signal instructing the start of inspection transmitted via a telephone line different from the emergency telephone line, and a receiver.
A solenoid that mechanically moves a hook member that switches on / off a switch that connects the emergency telephone to the emergency telephone line between a position where the switch is turned off and a position where the switch is turned on.
When the start signal is received, the solenoid is activated, the hook member is mechanically moved from the position where the switch is turned off to the position where the switch is turned on, and the emergency telephone is connected via the emergency telephone line. With the first control unit that connects to the reception desk
A recording unit that records an audio signal picked up by a transmitter in a state where audio is output from the handset of the emergency telephone connected to the emergency telephone line, and reproduces the recorded audio signal on the emergency telephone.
A second control that stops the solenoid, mechanically moves the hook member from the position where the switch is turned on to the position where the switch is turned off, and disconnects the emergency telephone from the emergency telephone line. An emergency telephone characterized by including a unit. The emergency telephone according to claim 13, further comprising an amplifier for amplifying an audio signal output from the handset.

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