JP6853089B2 - Charge control method for exchanges and mobile devices - Google Patents

Description

The present invention relates to a charge control method for a switchboard and a mobile device, and particularly relates to a charge control method for a mobile device such as a telephone switchboard and a smartphone in the event of a power failure.

The private telephone exchange is operated by a commercial power source and switches the connection between a plurality of internal telephones and external telephones. Since the power supply to the telephone exchange is cut off when the commercial power supply is cut off, the function of the telephone exchange is usually maintained by the power supply from the battery provided in the telephone exchange. For example, Patent Document 1 discloses an exchange device that charges a battery, a slave unit, or the like using a ringer signal. In particular, it is described that the ringer signal can be used to charge the cordless telephone slave unit housed in the extension in addition to charging the backup battery 12 from the commercial power source (paragraph 0036).

Japanese Unexamined Patent Publication No. 5-316257

Recently, in companies and the like, in addition to fixed-line phones, each employee has a wireless mobile phone and is made to make a call using the mobile phone. Mobile phones are convenient because they can talk on the phone even when there is a power outage on the commercial power supply. However, when the power of the battery of the mobile phone is exhausted, it becomes impossible to make a call, so it is desired that the mobile phone can be charged even when the commercial power supply is cut off.

The technique described in Patent Document 1 enables charging of a cordless telephone slave unit in addition to the battery 12, but in any case, since charging from the commercial power supply 3 is premised, when the commercial power supply fails. It also becomes impossible to charge the handset.

Therefore, an object of the present invention is to provide a switch capable of charging a mobile device in the event of a power failure of a commercial power source and a charge control method for the mobile device.

The switch according to the present invention is preferably a switch operated by a commercial power source, and is a plurality of station line trunk boards that form a station line with a telephone office and a plurality of extension trunk boards that connect extension terminals. A switch forming a communication path between the station line trunk board and the extension trunk board, a control unit for controlling each part, a battery for supplying power to each part, and a charging port connected to a mobile device. Have,
The control unit is a switchboard characterized in that at least one of the station line trunk boards is connected to the charging port and power is supplied from the telephone office to the charging port in the event of a power failure of the commercial power supply. It is composed.

The method for controlling charging of a portable device according to the present invention preferably comprises a plurality of station line trunk boards forming a station line with a telephone office, a plurality of extension trunk boards connecting extension terminals, and the station line trunk. It has a switch that forms a communication path between the board and the extension trunk board, a control unit that controls each unit, a battery that supplies power to each unit, and a charging port that is connected to a mobile device. A method for controlling the charging of portable devices in a switchboard operated by a power source.
The control unit is a portable device that connects at least one station line trunk board to the charging port and provides power supply from the telephone office to the charging port in the event of a power failure of the commercial power source. It is configured as a charge control method.

According to the present invention, it is possible to charge a mobile device by using a switchboard in the event of a power failure of a commercial power source.

The figure which shows the structure of the call system including the exchange by one Example. The figure which shows the control sequence of charge in the call system by one Example. The figure which shows the structure of the call system including the exchange by one Example.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[Example 1]
FIG. 1 is a diagram showing a configuration of a communication system including an exchange according to an embodiment.
In FIG. 1, a telephone system is configured by connecting an exchange 1 to a telephone office 3 of a line carrier through a line. In this embodiment, when the commercial power source 9 has a power failure, the functions of the telephone office 3 and the switchboard 1 can be used to charge the mobile device 2 such as a smartphone.

As the power supply system of the switch 1, an AC / DC converter 7 is connected to the commercial power source 9, and a battery 8 is prepared as a backup in the event of a power failure of the commercial power source 9, and power is supplied to each part of the switch 1. The exchange 1 includes a switch (SW) 12 for switching a call path, a plurality of station line trunk boards 151 and 152 connected to the switch 12, a plurality of extension trunk boards 161, 162, and a central processing unit (CPU) 13. A storage unit (MM) 14, a power supply detection unit 17 for detecting the power status of the commercial power supply 9 and the battery 8, and a charging port 18 for setting the portable device 2 are provided.

The central processing unit 13 is a control unit that controls the entire exchange 1, and is composed of a processor that executes various programs under various conditions. The storage unit 14 is, for example, a semiconductor memory, and stores various programs such as an exchange operation control program, and various data such as extension data, station data, and control data of a premises exchange device. The storage unit 14 also exchanges data with the central processing unit 13 according to an instruction from the central processing unit 13, and temporarily stores the data used in the central processing unit 13 when executing the exchange operation. The switch 12 is connected to the central processing unit 13 via a control bus, and connects or disconnects a telephone path according to an instruction from the central processing unit 13.

The station line trunk boards 151 and 152 (sometimes referred to as 15 as a whole) are connection units for connecting the public network to the switch 12 of the exchange 1 through the telephone office 3 of the line carrier. Each station line trunk board 15 includes a station line transmission / reception unit 1511 that forms a station line with the telephone office 3 (not shown on the station line trunk board 152). The station line transmission / reception unit 1511 sends various information such as call information (incoming call information), dial information, and disconnection information from a telephone (external line terminal) used by a station line connecter connected to the public network to the central processing unit 13. In addition to notifying, various information such as ringing information and incoming call information from the central processing unit 13 to the telephone used by the station line connecter via the central processing unit 3 is notified to the external line terminal connected to the public network. Take control. The extension trunk boards 161, 162 (sometimes referred to as 16 as a whole) have a transmission / reception unit (not shown) and perform notification control to the extension terminal.

The power supply detection unit 17 detects a power failure of the commercial power supply 9, detects the output voltage of the AC / DC converter 7, and detects the voltage of the battery 8. When the power detection unit 17 detects a power failure (commercial power cutoff) of the commercial power supply 9, it notifies the central processing unit 13 to that effect, and the central processing unit 13 controls to supply power from the battery 8.

According to this embodiment, when the commercial power source 9 has a power failure and the battery 8 has a certain amount of remaining power, the function of the exchange 1 can be used to charge the portable device 2. Therefore, a switching unit 1512, a voltage conversion unit 1513, and a charging circuit 1514 are provided on one of the station line trunk boards 15 of the station line trunk boards 15. Each of these parts is composed of, for example, an electronic circuit. The other station line trunk board 152 is provided with a station line transmission / reception unit (not shown), but does not have a portion such as a switching unit 1512 or a charging circuit 1514.

In the station line trunk board 151, the switching unit 1512 switches the connection between the station line transmission / reception unit 1511 and the voltage conversion unit 1513 according to the instruction from the central processing unit 13. The switching control will be described later with reference to FIG. The voltage conversion unit 1513 converts the power supply voltage (for example, station voltage −48V) into the voltage of the portable device 2 to be charged (for example, + 5V). The charging circuit 1514 activates the charging port 18 and supplies the voltage converted by the voltage conversion unit 1513 to the charging port 18. The charging port 18 is, for example, a charging adapter or a charging cable for charging the battery of the mobile device 2.

[Charge control operation during power failure]
Next, the charge control operation of the portable device in the exchange 1 will be described with reference to FIG.
FIG. 2 shows a sequence of charge control of a mobile device in the event of a power failure of a commercial power source. In FIG. 2, S1 to S8 at the right end indicate the paths shown by the dotted lines in FIG.

In FIG. 2, when the power supply detection unit 17 detects a power failure of the commercial power supply 9 (S201), it determines whether the remaining charge of the battery 8 is a predetermined amount (S202). As a result, when it is determined that there is a predetermined amount of remaining charge (Yes), a notification of power failure is sent to the central processing unit (hereinafter abbreviated as CPU) 13 (S203). On the other hand, if it is determined that there is no remaining charge of a predetermined amount (No), the function of the exchange is stopped (S204).

When the CPU 13 receives the power failure detection (S211), the CPU 13 confirms the station line resource (S212). That is, it is confirmed whether there is a vacancy in the station line trunk boards (hereinafter, COT is abbreviated) 151 and 152. As a result of the confirmation, if it is determined that there is no vacancy in the station line resource (S213: No), the above operation (S212-S213) is repeated until there is a vacancy in the station line resource. On the other hand, if it is determined that there is a vacancy in the station line resource, the operation proceeds to the following operation, that is, the charging operation using the station line resource.

When there is a vacancy in COT 151 and 152, the CPU 13 issues a call control instruction toward COT 152 to COT 151 (S214). Then, COT151 makes a call to the telephone office 3 (S221).

When the telephone office 3 detects an incoming call for a call from COT151 (S241), it starts supplying "-48V" to COT151 and COT152. When the COT152 detects an incoming call from the telephone office 3, it notifies the CPU 13 to that effect (S231).

When the CPU 13 detects an incoming call from COT152 (S215), the CPU 13 issues a response control instruction to COT152 (S216). The COT 152 performs response control when there is a response instruction from the CPU 13 (S232). When the telephone office 3 detects the response from COT152 (S243), it connects the line (S244). By the above control operation, a call path is formed between COT151, the telephone office 3, and COT152, and a call state is established (S222).

In this state, the CPU 13 issues a switching control instruction to the switching unit 1512 of the COT 151 (S217). In response to the instruction from the CPU 13, the switching unit 1512 switches the line from the station line transmission / reception unit 1511 to the voltage conversion unit 1513 (S223). By this switching control, the charging circuit 1514 is activated (S224), and the power converted from "−48V" to "+ 5V" by the voltage conversion unit 1513 is supplied to the charging port 18. As a result, the battery of the mobile device set in the charging port 18 is charged.

The user can remove the mobile device 2 from the charging port 18 after confirming that the mobile device is sufficiently charged. In this case, since the switching unit 1512 is connected to the voltage conversion unit 1513 and the station line transmission / reception unit 1511 is in the open state, the station line of COT 151 cannot be used. Therefore, a contact sensor for detecting the set / reset of the mobile device 2 is installed in the charging port 18, and when the contact sensor detects the reset of the mobile device 2, the CPU 13 detects that fact, and the CPU 13 presses the switching unit 1512. It is possible to control so as to connect to the station line transmission / reception unit 1511. In this way, the exchange 1 can talk on the phone during times other than the charging operation of the mobile device 2.

Further, in the same configuration in which the contact sensor for detecting the set / reset of the mobile device 2 is installed in the charging port 18, when the contact sensor detects the set of the mobile device 2, the CPU 13 starts the control operation shown in FIG. Can be controlled to allow.

If the power supply from the battery 8 is cut off while the mobile device 2 is being charged, the station line trunk board 15 and the extension trunk board 16 also go down. Therefore, since the function as an exchange is lost, the call cannot be made, but the charging operation to the mobile device 2 is continued as long as the station power supply is continued. After confirming that the mobile device is sufficiently charged, the user removes the mobile device 2 from the charging port 18. If another user wants to charge the mobile device, the other user's mobile device can be subsequently set in the charging port 18.

[Call operation during normal operation]
Next, with reference to FIG. 3, the extension-external line communication path in the normal state will be described.
In FIG. 3, the routes T1 to T8 shown by the broken lines indicate the communication routes when the commercial power source 9 is operating normally. Normally, the switching unit 1512 of the COT 151 is connected to the station line transmission / reception unit 1511.

For example, when the extension terminal 1 has a dial operation, the CPU 13 detects it (T1) and controls the switch 12 to connect the extension terminal 1 and the COT 151 to the line (T2). Then, when the CPU 13 issues a call control instruction to the outside line terminal to the COT 151 (T3), the COT 151 calls the COT 151 to the telephone station 3 through the station line transmission / reception unit 1511 (T4).

When the telephone office 3 detects an incoming call from COT151, it starts supplying "-48V" to COT151. Further, response control is performed for the outside line terminal through the public network (T5). When the telephone office 3 detects a response from the outside line terminal (T6), the line is connected to the outside line terminal (T7). By this line connection, a communication path is formed between the outside line terminal, the telephone office 3, the station line transmission / reception unit 1511, SW12 of the COT 151, the extension trunk board 161 and the extension terminal 1, and a call state is established (T8).

The call between the extension terminals is carried out through the routes of the extension terminal 1, the extension trunk board 161 and the switch 12, the extension trunk board 162, and the extension terminal 2. In this case, COT15 is not used.

[Call operation when commercial power is turned off and the battery is low]
When the commercial power supply is cut off and the battery 8 remains, the function of the main body of the exchange 1 is alive, so that a call can be made between the outside line terminal and the extension line terminal through the COT 15 and the extension trunk board 16. However, when the commercial power is turned off and the battery 8 is exhausted, the main body of the exchange 1, the COT15, and the extension trunk board 16 go down, and the function as the exchange is lost. This makes the call impossible. In the conventional technology, even if the commercial power is cut off and the battery 8 is exhausted, if an external switch is provided on the station line of the station line trunk board to be used, it is possible to make a direct call to the station line using an analog telephone. Is.

As described above, according to the present embodiment, if the telephone office is operating (station power supply) even when the commercial power supply is cut off, the portable device can be charged using the exchange. Compared to conventional charging means such as mobile batteries, solar cells, and hand-cranked charging, it is possible to stably charge mobile devices without worrying about the number of times of charging.

[Alternative variant]
The present invention is not limited to the above examples, and can be implemented in various modifications.
For example, in Example 1, an example of charging a mobile device using a private branch exchange when a power failure of a commercial power source is performed has been described. In this case, the voltage to be converted by the voltage conversion unit 1513 is preset according to the voltage of the portable device that is expected to be charged. Further, it may be configured to change the voltage value to be converted each time corresponding to a portable device having various voltages.

Further, in the first embodiment, one of the station line trunk boards 151 and 152, the station line trunk board 151, is provided with functions such as a switching unit 1512 and a voltage conversion unit 1513. According to the modification, the exchange 1 can also include a plurality of pairs of station line trunk boards 151 and 152 having the configuration of the first embodiment. If the exchange 1 has a plurality of pairs of station line trunk boards, the charging service to the portable device is further improved.

Further, according to another example, in an example in which two pairs of the station line trunk boards 151 and 152 of the above modified example are provided, the first pair is configured as in the above embodiment, and the second pair is a switching unit. It is also possible to configure it so as not to provide functions such as the 1512 and the voltage conversion unit 1513. In this case, the charging service of the mobile device is as in the first embodiment, but since the call path can be formed by using the second pair, the charging service to the mobile device and the call service to the outside line terminal are possible. is there.

1: Exchange 2: Portable equipment 3: Telephone office 4: Public network 7: AC / DC converter 8: Battery 9: Commercial power supply 12: Switch 14: Storage unit 13: Central processing device 151, 152: Station line trunk board 161 , 162: Extension trunk board 17: Power supply detection unit 1511: Station line transmission / reception unit 1512: Switching unit 1513: Voltage conversion unit 1514: Charging circuit 18: Charging port

Claims (7)

A switch operated by commercial power
Multiple station line trunk boards that form a station line with the telephone office,
Multiple extension trunk boards for connecting extension terminals,
A switch forming a communication path between the station line trunk board and the extension trunk board,
A control unit that controls each of the above units,
A battery that supplies power to each part and
Has a charging port, which is connected to mobile devices,
The control unit is a switchboard characterized in that at least one of the station line trunk boards is connected to the charging port to provide power supplied from the telephone office to the charging port in the event of a power failure of the commercial power supply. A plurality of station line trunk boards having a station line transmitter / receiver forming a station line with a telephone office, a plurality of extension trunk boards connecting extension terminals, and a call between the station line trunk board and the extension trunk board. A switch that has a switch that forms a path, a control unit that controls each of the parts, and a battery that supplies power to each of the parts, and is operated by a commercial power source.
A charging port connected to a mobile device and
The at least one station line trunk board has a switching unit that connects a line to either the switch or the charging port.
A switchboard characterized in that, in the event of a power failure of the commercial power source, the control unit switches the line of the switching unit to supply power from the telephone office to the charging port. A power supply detection unit that detects the power status of the commercial power supply and the battery, and
The at least one station line trunk board includes a charging circuit connected to the charging port, a voltage conversion unit connected to the charging circuit to convert a station voltage into a predetermined voltage, the station line transmitting / receiving unit, and the like. It has the switching unit that switches the line between the voltage conversion unit and the voltage conversion unit.
When the power supply detection unit detects the disconnection of the commercial power supply and the possibility of supplying power from the battery, the control unit controls the switching unit and transfers the power from the station line transmission / reception unit to the voltage conversion unit. Switching the line and supplying the power of the voltage converted by the voltage conversion unit to the charging port.
2. The exchange according to claim 2. The plurality of station line trunk boards include a first station line trunk board having the switching portion and a second station line trunk board having the switching portion.
The control unit gives a call control instruction to the first station line trunk board toward the second station line trunk board.
The first station line trunk board sends a call to the central office and sends a call to the central office.
When the second station line trunk board detects an incoming call from the telephone office, the second station line trunk board controls the response based on the instruction by the control unit.
After a communication path is formed between the first station line trunk board, the second station line trunk board, and the telephone office, the control unit controls the switching unit to switch the line. To do,
2. The exchange according to claim 2. The switch according to claim 3 , wherein the voltage conversion unit converts a local voltage to + 5V. A plurality of station line trunk boards forming a station line with a telephone office, a plurality of extension line trunk boards connecting extension terminals, and a switch forming a communication path between the station line trunk board and the extension trunk board. A method for controlling charging of a mobile device in a switch operated by a commercial power source, which has a control unit for controlling each of the parts, a battery for supplying power to each of the parts, and a charging port connected to the mobile device. hand,
The control unit is a portable device that connects at least one station line trunk board to the charging port and provides power supply from the telephone office to the charging port in the event of a power failure of the commercial power source. Charge control method. A plurality of station line trunk boards having a station line transmitter / receiver forming a station line with a telephone office, a plurality of extension trunk boards connecting extension terminals, and a call between the station line trunk board and the extension trunk board. A portable device in an exchange operated by a commercial power source, which has a switch forming a path, a control unit that controls each of the parts, a battery that supplies power to each of the parts, and a charging port that is connected to the mobile device. It is a charge control method of
A switching step of switching the line to either the switch or the charging port on at least one station line trunk board.
A method for controlling charging of a mobile device, which comprises a step of switching the line to the charging port in the switching step and supplying power from the telephone office to the charging port in the event of a power failure of the commercial power source. ..

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