JP3834150B2 - Transfer telephone equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an apparatus provided corresponding to one telephone in a telephone communication network in which a switchboard has a transfer telephone function. When the telephone is to receive a transfer telephone service, The present invention relates to a transfer telephone apparatus that facilitates instructing an exchange to start, and more particularly to a transfer telephone apparatus suitable for use in a security room of a building.
[0002]
[Prior art]
A security system widely used in buildings and the like includes various sensors and alarm devices. Sensors are arranged in various parts of the monitoring area, and detect opening / closing of doors of each room, intruders, high temperature, smoke, and the like. The alarm device receives the output of the sensor, determines whether there is an abnormality in consideration of the current security mode, generates security information based on the determination, and displays the security information on a display such as a lamp To do. Security guards are often placed in the security room to monitor abnormalities by displaying alarm devices and sounding alarms.
[0003]
For example, the security guard monitors the alarm device, and if an abnormality is displayed, he leaves the security room, goes to the department showing the abnormality, visually checks the contents of the abnormality, resolves the abnormal situation (fire extinguishment, etc.), and reports (the police) Or contact the fire department). Also, it is required to look around the surveillance area at night and on holidays.
[0004]
In this way, when the security guard is away from the security room, an abnormal situation may occur, the abnormality is detected by the sensor, and the abnormality may be displayed on the alarm device. To ensure that abnormal situations can be detected early when a security guard leaves the security room, when the security guard leaves the security room, the security information can be transmitted to the control center via a telephone line. A security network is usually built. The control center is the central function of the security organization to which the security system responsible for that individual security area belongs. One control center controls the security system for each of the individual security areas and operates the entire security organization efficiently.
[0005]
When the security guard leaves the security room, he sets the mode setting unit of the alarm device to the security set. When the alarm device is set in the security set, it reads out the telephone number of the control center stored in advance, and sends a selection signal for selecting the security information receiving device of the control center to the telephone company's exchange to control the alarm device. Connect the center security information receiver with a telephone line. Then, the fact that the security system is set to the security set is transmitted to the control center. Further, when the security in the mode setting unit of the alarm device is released, a security release signal is transmitted from the alarm device to the control center.
[0006]
When a security guard is away from the security room, a call may be made to the security room from the outside, such as the police, a fire department, or a related person. Calls to the security room may be important information about security. Therefore, when the security guard leaves the security room, the security system is set to a security set, and a transfer start signal is sent from the telephone in the security room to the telephone company exchange so as to receive the transfer telephone service.
[0007]
In the transfer telephone service, if a transfer start signal is sent from the telephone to the telephone line, a telephone company exchange such as NTT recognizes the transfer start signal, and then a call addressed to the telephone is sent to the exchange. The call is transferred to a telephone having another telephone number designated in advance. For example, a telephone of a control center is designated as the telephone having the other number as the transfer destination. The transfer destination telephone number can be arbitrarily changed by transmitting a transfer destination registration selection signal and a new transfer destination telephone number from the telephone to the exchange.
[0008]
Thus, when the security guard is away from the security room, if a transfer start signal is sent from the security room telephone and the security room telephone is set to the transfer state, the police, fire department or outside parties such as those concerned Calls addressed to the security room are transferred to, for example, the control center, and important communications and notifications for security can be grasped as a security organization without losing time, and necessary measures can be taken.
[0009]
[Problems to be solved by the invention]
However, in order to set the telephone in the security room to the transfer state, it is necessary to manually operate the telephone in the security room and transmit a transfer start signal from the telephone. However, when the security guard leaves the security room, as described above, an abnormality is displayed on the alarm device, the security guard goes to the department showing the abnormality, visually confirms the content of the abnormality, and eliminates the abnormal situation (fire extinguishing, etc.) Often times it is necessary to make a call or report (eg contact the police or fire department).
[0010]
Therefore, when the security guard leaves the security room, in addition to the operation of setting the mode setting unit of the alarm device to the security set, the security room telephone is manually operated, a transfer start signal is transmitted, and the transfer is performed by the exchange. There may not be enough time to wait for the start signal to be recognized and to confirm that a message (for example, “Transfer start has been completed”) is sent back from the exchange. You may not be able to receive forwarding services. Moreover, even if the guards inadvertently perform the operation of setting the mode setting unit of the alarm device to the security set, they may forget to set the telephone to the transfer state.
[0011]
In this way, in the conventional transfer telephone method of transmitting a transfer start signal from a general telephone, if the security guard leaves the security room without setting the security room telephone to a transfer state for some reason, Security that important communications and notifications are not transmitted to the security organization and may not be able to take necessary measures on the security that should be transmitted from the outside to the security room from the police, fire department or related parties There was a problem to be solved that cannot be overlooked as an information transmission system. Therefore, an object of the present invention is to avoid a situation in which when the security guard leaves the security room, the mode setting device of the alarm device is set to the security set, but the telephone in the security room is not set to the transfer state. In providing equipment.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides the following means.
[0013]
(1) In a transfer telephone apparatus in which a plurality of telephones are connected to an exchange having a transfer telephone function via a telephone line and are installed in association with one of the plurality of telephones.
A signal receiving unit connected to the security system and receiving a security set signal indicating that the security system is set to a security set state;
A call state monitor for detecting a call state of the telephone;
A transfer start signal sending means for sending the transfer start signal to the telephone line;
The transfer start signal sending means sends the transfer start signal to the telephone line when the call state monitoring unit detects a non-call state of the telephone and the signal receiving unit receives the security set signal. A transfer telephone apparatus characterized by:
[0014]
(2) The transfer start signal is formed by arranging a plurality of codes in series on a time axis, and the transfer start signal sending means transmits the transfer start signal having different time intervals between the plurality of codes a plurality of times. The transfer telephone device according to (1) above, wherein
[0015]
(3) comprising means for detecting the transfer start message;
The transfer start signal sending means transmits the transfer start signal having different time intervals of the plurality of codes a plurality of times until the transfer start message detecting means detects the transfer start message. The transfer telephone device according to (2).
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in more detail with reference to embodiments of the present invention.
[0017]
FIG. 1 is a block diagram showing a transfer telephone apparatus 10 according to an embodiment of the present invention. In the figure, 1 is a control unit, 2 is a storage unit, 3 is an operation unit, 4 is a display unit, 5 is a selection signal control unit, 6 is a line switching unit, 7 is a line monitoring unit, and 8 is a message input unit. .
[0018]
Here, the transfer input unit 8 corresponds to the above-described signal receiving unit, and the line monitor unit 7 corresponds to the above-described call state monitoring unit. A configuration including the control unit 1, the storage unit 2, the selection signal control unit 5, and the line switching unit 6 corresponds to the above-described transfer start signal transmission unit.
[0019]
FIG. 2 is a block diagram showing a telephone network in which the transfer telephone apparatus of FIG. 1 is installed. In the figure, 11 is a telephone, 12 is a controller, 13 is a mode setting device, 14 is various sensors, 21 is an exchange, and 22 is a telephone connected to the exchange 21 via a telephone line 35. Reference numeral 20 denotes a security area. The transfer telephone device 10 is associated with the telephone 11.
[0020]
Here, the controller 12 corresponds to the above-described alarm device, the telephone 11 corresponds to the above-mentioned transfer request telephone, and the telephone 22 corresponds to the above-mentioned another telephone. The security set signal corresponds to the aforementioned predetermined state setting signal.
[0021]
The predetermined state here is that the mode setting unit 13 of the controller 12 (alarm device) is set to the security set. When set in the security set, the intrusion sensor 14 in the security system (one of the various sensors 14 is an intrusion sensor. Here, the intrusion sensor is a representative of the various sensors 14 and will be described with reference numeral 14. ) Is determined to be abnormal as a result of the determination by the controller 12, and the controller 12 transmits the abnormal signal to the control center via a telephone line.
[0022]
The guard set signal line 31 is composed of two stranded wires. The fact that the security set switch is set to ON means that the voltage between the two lines in the security set signal line 31 composed of two stranded wires is zero. That is, the two wires are in contact with each other, and there is no voltage between the two wires.
[0023]
The control unit 1 is a microprocessor that is widely used as a CPU of a personal computer. The storage unit is a semiconductor storage device that is widely used as a memory in a personal computer, and includes a ROM and a RAM. The exchange 21 is the exchange having the core of the telephone network of a telephone company such as NTT and having a transfer telephone function. Telephone lines indicated by reference numerals 33 and 35 are subscriber telephone lines connected to the exchange 21.
[0024]
The operation unit 3 is a switch. When initializing a transfer start signal, the initial value is set by the switch, and the initial value is input to the control unit 1. The control unit 1 stores these initial values in the storage unit 2.
[0025]
The display unit 4 is a liquid crystal display for displaying the initial value input by the operation unit 1 or displaying the initial value stored in the storage unit for confirmation. The display signal is supplied from the control unit 1.
[0026]
The selection signal control unit 5 receives a selection signal to be transmitted to the exchange 21 from the control unit 1, and converts the code of the selection signal into a dial signal composed of a PB signal (or DP signal). The dial signal is transmitted to the exchange 21 via the line switching unit 6, the line monitor unit 7 and the telephone line 33.
[0027]
The line switching unit 6 connects the telephone line 33 to the telephone 11 or the selection signal control unit 5 through the line monitor unit 7 in accordance with the line switching signal supplied from the control unit 1. The control unit 1 normally connects the telephone line 33 with the line switching unit 6 to the telephone set 11 via the line monitor unit 7 and sets the telephone line 33 with the line switching unit 6 when the telephone set 11 is set to the transfer state. Is connected to the selection signal control unit 5 via the line monitor unit 7.
[0028]
The line monitor unit 7 is connected to the telephone line 33 and the line switching unit 6, determines from the line current of the telephone line 33 whether the telephone 11 is in a call state or a non-call state, and the result of the determination is a line. A state signal is input to the control unit 1.
[0029]
The transfer input unit 8 receives a guard set signal from the controller 12, converts the guard set signal into a signal of a level suitable for being received by the control unit 1, that is, a transfer signal that is a logical value signal. The information input is sent to the control unit 1. When the transfer input is a logical value “1”, the controller 12 is in a security set state, and when the transfer input is a logical value “0”, the controller 12 is in a security release state. In the security release, even if the controller 12 determines an abnormality from the output of the intrusion sensor 14, it does not transmit an abnormality signal to the control center.
[0030]
When the security set is set by the mode setting unit 13, a security set signal is sent to the message input unit 8. When the control unit 1 confirms that the telephone 11 is in a non-calling state by the line monitor unit 7, the line switching unit 6, the telephone 11 is disconnected from the telephone line 33, and a selection signal code representing a transfer start signal is sent to the selection signal control unit 5.
[0031]
The transfer start signal is “142” + (guidance) + “1” in the example of the current NTT transfer telephone service. More specifically, when "142" is first transmitted to the telephone line 33 by the dial signal composed of the PB signal (or DP signal) from the telephone that desires to transfer, that is, the above-mentioned telephone that desires to transfer, the exchange sends the dial signal " 142 "recognizes 142" and then sends guidance to the telephone line.
[0032]
The guidance is a voice guidance of a telephone transfer operation provided as a service to a person who operates the telephone 11 that desires to transfer. With this guidance, the person attempting to initiate the transfer will be instructed that the next "1" should be dialed. Therefore, when the operator of the transfer request telephone 11 dials “1”, the exchange recognizes “1” and sets the transfer request telephone 11 to the transfer state.
[0033]
The guidance time is about 30 seconds, but is not necessarily constant, and varies depending on the exchange. For example, it is 25 seconds or 35 seconds.
[0034]
The telephone set 11 is set to the transfer state. When the exchange 21 receives a selection signal for selecting the telephone set 11, the exchange 21 transfers the call of the selection signal to the telephone set 22 having a preset transfer destination telephone number. As described above, the transfer telephone function of the exchange 21 is set.
[0035]
FIG. 3 is a flowchart showing a first embodiment of an operation procedure performed by the control unit 1 in the transfer telephone apparatus 10 of FIG. In the procedure P1, the transfer input unit 8 receives the guard set signal from the controller 12, converts the guard set signal into a signal suitable for reception by the control unit 1, that is, a transfer input, and the transfer It is determined whether or not an input is input to the control unit 1. If it is N (Not, No) in the procedure P1, it means that the guard set signal is not output from the controller 12, and therefore it waits until the guard set signal is received. If it is Y (Yes, as it is) in the procedure P1, it means that the security set signal is output from the controller 12, and the process proceeds to the procedure P3.
[0036]
In step P3, the line monitor unit 7 determines whether the telephone 11 is in a call state or a non-call state, and the determination result is transmitted to the control unit 1 as a line state signal. If it is (Y), it will wait, and if the telephone 11 is a non-calling state (N), it will progress to procedure P4.
[0037]
In procedure P4, a line switching signal is output so that the line switching unit 6 connects the telephone line 33 to the selection signal control unit 5.
[0038]
In step P5, a code of a selection signal representing the transfer start signal is sent to the selection signal control unit 5. At this time, the selection signal control unit 5 first transmits “142” to the telephone line 33 by a dial signal composed of a PB signal (or DP signal). Then, “When the guidance period is predicted and the predicted time measured by the timer has elapsed,“ 1 ”is transmitted as a PB signal (or DP signal). From“ 142 ”transmission to“ 1 ”transmission The transmission of a series of dial signals up to is the transmission of one transfer start signal.
[0039]
In consideration of the case where the transfer start signal is not recognized by the exchange 21, the transfer start signal is continuously executed three times (the predetermined number of times in step P6 is three) in the embodiment of FIG. Send. In procedure P6, the transfer start signal is transmitted a predetermined number of times.
[0040]
In procedure P8, the waiting time corresponding to the guidance, the waiting time from the end of transmission of the code “142” to the start of transmission of the code “1”, in other words, the time interval of the code in the transfer start signal is set. Change for each transfer start signal. In this way, by changing the time interval of the code in the transfer start signal for each transfer start signal, three types of guidance times can be predicted. The possibility of being recognized as a transfer start signal in the exchange 21 in accordance with the guidance time is significantly increased.
[0041]
In the block of the procedure P8, changing the time interval of the codes constituting the transfer start signal for each transfer start signal is marked as “change in timing of transfer start signal”.
[0042]
In step P9, a line switching signal is output so that the line switching unit 6 connects the telephone line 33 to the telephone set 11. By this operation, the telephone 11 is connected to the telephone line 33 again. A transfer stop signal can be manually transmitted from the telephone 11 to the telephone line 33 to cancel the transfer state. In the current NTT transfer telephone service, the transfer stop signal is “142” + (guidance) + “0”.
[0043]
FIG. 4 is a flowchart showing a second embodiment of an operation procedure performed by the control unit 1 in the transfer telephone apparatus of FIG. In addition to the procedure of FIG. 3, in the embodiment of FIG. 4, a procedure P2 for determining whether there is transfer operation storage (Y) or not (N) is provided.
[0044]
In order to realize the procedure P2 in FIG. 4, a transfer start signal detection function is given to the line monitor unit 7. If a transfer start signal detection function is provided to the line monitor unit 7, if the transfer start signal is already transmitted manually by the telephone 11, the line monitor unit 7 that has detected the transfer start signal detects the transfer start signal. Can be transmitted to the control unit 1. Then, the control unit 1 records the transmission start signal transmission completion in the storage unit 2, and confirms whether the transfer operation is stored (Y) or not (N) in the procedure P <b> 2 by recording in the storage unit 2. If there is memory (Y), the waste of following the transmission start signal transmission procedure is omitted.
[0045]
FIG. 5 is a flowchart showing a third embodiment of the operation procedure performed by the control unit 1 in the transfer telephone apparatus of FIG. In the embodiment of FIG. 5, instead of the procedure P6 in the procedure of FIG. 3, a procedure P7 for determining whether the transfer start / end message is detected (Y) or not detected (N) is provided.
[0046]
In order to realize the procedure P7 in FIG. 5, a transfer start / end message detection function is added to the line monitor unit 7. If a function for detecting a transfer start / end message is added to the line monitor unit 7, it can be determined whether or not the transfer start / end message is transmitted from the exchange 21 (Y) or not (N). If the transfer start end message is transmitted from the exchange 21, the transfer start signal transmitted in the procedure P5 is recognized by the exchange 21, and it can be confirmed that the transfer state has already been set for the telephone set 11. There is no need to transmit a transfer start signal. Therefore, in the procedure of FIG. 5, when the transfer start end message is detected (Y), the procedure proceeds to procedure P9 without proceeding to procedure P8. However, there is no particular problem even if the transfer start signal is simply transmitted a predetermined number of times as shown in FIG. 3 without confirming the transfer start end message. This is because there is no possibility that the switch will malfunction even if the transfer start signal is repeatedly transmitted to the switch 21 when the transfer state has already been set.
[0047]
As described in the section of the conventional technology, in the conventional transfer telephone system in which a transfer start signal is transmitted from a general telephone, a security guard guards without setting the telephone in the security room to the transfer state for some reason. If you leave the room, important communications and notifications are not transmitted to the security organization, which is necessary to be transmitted to the security room from the outside, such as the police, fire department, or related parties, etc. There is a problem to be solved that cannot be overlooked as a security information transmission system that can not be taken. On the other hand, by adopting the transfer telephone device according to the embodiment of the present invention described above with reference to FIGS. 1 to 5, when the security guard leaves the security room, the controller 12 (alarm device) If the mode setter 13 is set to the security set, the security telephone 11 is automatically set to the transfer state, and important communications and notifications on the security to be transmitted by the telephone addressed to the security room. It is possible to avoid a serious situation where the necessary measures cannot be taken without being transmitted to the security organization.
[0048]
【The invention's effect】
As described above in detail with reference to the embodiment, according to the present invention, when the guard leaves the security room, the mode setting unit of the alarm device is set to the security set, but the security room telephone is set. The apparatus which avoids the situation where is not set to a transfer state can be provided.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a transfer telephone device 10 according to an embodiment of the present invention.
FIG. 2 is a block circuit diagram showing a telephone network in which the transfer telephone apparatus of FIG. 1 is installed.
FIG. 3 is a flowchart showing a first embodiment of an operation procedure performed by the control unit 1 in the transfer telephone apparatus of FIG. 1;
4 is a flowchart showing a second embodiment of an operation procedure performed by the control unit 1 in the transfer telephone apparatus of FIG. 1; FIG.
FIG. 5 is a flowchart showing a third embodiment of an operation procedure performed by the control unit 1 in the transfer telephone apparatus of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Control part 2 ... Memory | storage part 3 ... Operation part 4 ... Display part 5 ... Selection signal control part 6 ... Line switching Section 7... Line monitor section 8... Transfer input section 10... Transfer telephone devices 11 and 22.・ Mode setter 14 ・ ・ ・ Sensor (Intrusion sensor)
31: Security set signal line 33: Telephone line

Claims (3)

A plurality of telephones connected to an exchange having a transfer telephone function via a telephone line, and a transfer telephone apparatus installed in association with one of the plurality of telephones;
A signal receiving unit connected to the security system and receiving a security set signal indicating that the security system is set to a security set state;
A call state monitor for detecting a call state of the telephone;
A transfer start signal sending means for sending the transfer start signal to the telephone line;
The transfer start signal sending means sends the transfer start signal to the telephone line when the call state monitoring unit detects a non-call state of the telephone and the signal receiving unit receives the security set signal. A transfer telephone apparatus characterized by:   The transfer start signal is formed by arranging a plurality of codes in series on a time axis, and the transfer start signal sending means transmits the transfer start signal with different time intervals of the plurality of codes a plurality of times. The transfer telephone apparatus according to claim 1. Means for detecting the transfer start message;
The transfer start signal sending means transmits the transfer start signal with different time intervals of the plurality of codes a plurality of times until the transfer start message detecting means detects the transfer start message. Item 3. The transfer telephone device according to Item 2.

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