JPH01215136A - Individual supervising/calling device - Google Patents

Abstract

PURPOSE:To attain signal transmission by a small power radio equipment by using both paths of wired and radio lines for the signal transmission till a reply comes from a call in a supervision control section applying call. CONSTITUTION:Signals A, B from a supervision control section 1 are sent to a wired section 4 of a repeater 3-1 through a cable 2 and a transmitter 5 sends the signals through an antenna 8. The repeater 3-1 receives a signal E to send the signal E from the wired section 4 to the supervision control section 1 through the cable 2. The supervision control section 1 receives the signal E, confirms it to be a signal E through a reply device 3-1-1 and the repeater 3-1 identified corresponding to the signals A, B sent previously thereby recognizing a reply information signal (h) required in the signal E. Thus, the range of the reply device to be located including the transmission path by the small power radio equipment is grasped surely thereby confirming the operation of system.

Description

[Detailed description of the invention] (Industrial application field) TECHNICAL FIELD The present invention relates to an individual monitoring and calling device in a remote location.

(Prior art) In the conventional monitoring method of this type, when trying to perform monitoring or reporting by wireless method, it is difficult to cover the monitoring range and call range over long distances or inside each room of a hospital, etc. A powered radio is required.

In addition, when using wireless communication, for example, in the case of mobile car telephone systems, there is a management station that constantly monitors the call status, separate from the station that directly relays the call. Setting up relay stations and lines. This is because due to the nature of wireless telephones, there are places where it is difficult for radio waves to reach due to buildings such as buildings or shielding objects such as mountains.

In addition, when using a wired system, such as a telephone line, to explain the conventional NTT example, when a call is made, the busy display indicates whether the line on the way is full, the repeater on the way is full, or It is unclear whether the other party's phone is busy. Another drawback is that it is impossible to tell which phone the other party is calling from.

(Means for Solving the Problems) The present invention solves the drawbacks of the conventional similar systems and devices described above, and provides an individual monitoring and calling device that covers a wide range by using both wired and wireless devices like this device. Using a low-power wireless device, it is possible to reliably grasp the range in which the responder is located, including the transmission path, and to simultaneously check the operation of the system.

(Embodiment) FIG. 1 is a block diagram of an embodiment of the present invention, in which 1 is a monitoring control unit, 2 is a cable, 3-1.3-2.3-3, . . . 3
-N is a repeater, and since each repeater operates in the same way, the operation of the repeater 3-1 will be explained. In the repeater 3-1, 4 is a wired section, 5 is a transmitter, and 6 is a wired section.
is a receiver, 7 is an antenna switch, and 8 is an antenna.

In addition, 3-1-1, 3-1-2, 3-1-3 are repeaters 3-
The answering machine under 1 is normally within the radio wave reception range of repeater 3-1, and is relayed by this repeater 3-1 to answer the call, but if it leaves the range of repeater 3-1 , other repeaters 3-2.3-3. . . 3-N, the supervisory control unit 1 relays the call response using any of the repeaters.

In addition, each answering machine 3-2-1.3-2-2.3-2-3 is attached to the middle 11 aircraft 3-2, and the answering machine 3-3-1.3-3-2.3-
3-3 is the repeater 3-3, and similarly the responder 3-N-1, 3
-N-2 and 3-N-3 are assumed to be within the range of repeater 3-N.

FIG. 2 is a configuration diagram of signals transmitted by the supervisory control unit 1, each repeater, and each responder. FIG. 2(a) is a signal transmitted by the supervisory controller 1, and FIG. 48 at the time of sending -1,
A wireless signal and a wired signal to the supervisory control unit 1 are shown when the answering machine 3-1-1 is called wirelessly by a signal from the supervisory control unit 1, and FIG. 2(C) shows the response device 1, 13-1-1. The signal at the time of transmission and the signal that the relay device relays the response signal from the response device 3-1-1 are shown.

Next, the operation will be explained in detail using the drawings.

The monitoring control unit 1 transmits the signals A and B shown in FIG. 2(a) with or without modulation through the cable 2 to the wired unit 4 of the repeater 3-1. The signal A to be transmitted is the start signal [A]
and a specific identification signal [mouth], which is relayed to m3-1.
When the wired unit 4 receives the signal, it controls the transmitter 5 and antenna switch 7 of the repeater 3-1 to enter a transmitting state. This signal A
Accordingly, the transmitter 5 either uses the identification number 43 as it is or uses another signal indicating the identification of the repeater 3-1 as shown in FIG. 2(b).
signal C, and the next signal included in signal B, namely, response t, answering machine calling signal for calling 13-1-1 [
The transmitter 5 of the repeater 3-1 transmits a signal consisting of the inquiry signal [2] for the required information, and the transmission end signal [e].
The signal is then transmitted through the antenna 8. At the same time, the same signal is transmitted from the wired section 4 to the supervisory control section 1 by wire. After transmission, the receiver 6 of the repeater 3-1 immediately enters the receiving state, connects the receiver 6 to the antenna 8 through the antenna switch 7,
Put the repeater 3-1 into a receiving state.

The answering machine is normally in the receiving state, and only the answering machine, for example 3-1-1, which receives the answering machine calling signal [C] in the signal and matches the answering machine calling signal [C] sends the transmission end signal [H]. ]
After receiving the answering machine call signal [C], the answering machine identification signal [to] indicating the identification of the answering machine corresponding to the answering machine calling signal [C] or the answering machine identification signal [to] indicating the identification of the answering machine corresponding to the answering machine calling signal [C] is sent. Fig. 2 consists of an answering machine call code [c] or a new identification signal [g] indicating identification, a response information signal [ch] to the interrogation signal [2], and an end signal [su] indicating the end of transmission. Transmits E in (C) and immediately enters the receiving state.

Medium m [13-1 is (g! of No. 13 E (Figure 2 (C))!
After receiving the signal E, the wired section 4 transmits the signal E as it is, with or without modulation, to the supervisory control section 1 through the cable 2. The supervisory control unit 1 receives the signal E, confirms that it is the signal E that has passed through the identified transponder 3-1-1 and the repeater 3-1 corresponding to the previously transmitted signals A and B, and The required response information signal [CH] can be found in the signal B. Note that in case there is no response within a predetermined period of time via the designated repeater 3-1, the repeater is sequentially changed and the call is made. In addition, when using a calling method that relays calls to all repeaters at the same time, a control signal from the repeater corresponding to the master key can be used to call individual specific answering machines sequentially from each repeater, or multiple repeaters at the same time in areas where there is no interference. The repeater transmits a relay call radio wave.

(Effects of the Invention) As described above, in this device, the supervisory control unit that makes the call uses both wired and wireless paths for signal transmission from the call until the response is returned, thereby reducing power consumption. This can be done using a radio.Also, the repeater and responder can be reliably identified.

In general, in the field of security, it is possible to generate identification signals for relay and response times in repeaters and answering machines, separately from calls, and in accordance with a predetermined program.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a transmission/reception diagram No. 3 for explaining the operation of FIG. 1. 1... Monitoring control unit, 2... Cable, 3-1゜3-
2. --3-N--・Medium! ! machine, 3-1-1゜3-2
-1. ...3-N-1...Response device, 4...Wired section, 5...Transmitter, 6...Receiver, 7...Antenna switcher, 8...Antenna, A, B... Sending signal from the supervisory control unit, B... Start signal in No. 48 A,
口...Repeater identification signal in signal A, C...signal B
answering machine calling signal inside, 2... interrogation signal inside signal B,
E... Transmission end signal in signal B, F... Identification signal transmitted by the answering machine, G... Identification signal of the repeater transmitted by the answering machine, H... Transmission end signal of the answering machine Response information signal, Re... End signal sent by the responder, C... Repeater identification signal when transmitting a repeater, D... All signals when transmitting a repeater, E... Transmission by the responder. signal, a signal that is relayed by a repeater. Patent applicant: Japan Radio Co., Ltd. Kite figure 2 (a) (b)

Claims (4)

[Claims] (1) A supervisory control unit, a plurality of repeaters that are controlled by the supervisory control unit through a cable and transmit a call signal, and receive a call signal from the repeater and send a response signal in response to the call signal. An individual monitoring and calling device comprising a plurality of transmitting transponders. (2) The supervisory control unit according to claim 1 sends a control signal for individually controlling the repeater and an individual calling signal for the answering machine from the repeater, and the repeater and the answering machine are connected to each other. An individual monitoring and calling device characterized in that when it receives the control signal and the individual calling signal, it relays and responds by adding its own identification signal. (3) Attach a start signal and an end signal to each transmission signal of the repeater and answerer according to claim 2, activate the corresponding repeater or answerer by the start signal, and receive the end signal. An individual monitoring and calling device characterized in that the transmission operation of a corresponding repeater or answering device is subsequently started. (4) An individual monitoring and calling device according to claim 3, wherein a calling signal to the answering device is simultaneously transmitted to a monitoring control section.