JP6452656B2 - Geo-information transfer device - Google Patents

Description

  The present invention relates to an apparatus for transferring contact information of equipment provided in a building and temperature information of the equipment between other buildings.

  Each facility such as a communication device is provided in a building used by a communication carrier. The detection at the time of power failure of these facilities is monitored by a contact signal provided in each facility. This contact information uses a ground signal. The ground signal has electrical materials such as cords and cables wired between the buildings and between the buildings that transfer the contact information, and the ground signal is transmitted and received using these wirings. The ground signal is used not only for detecting a failure of the equipment but also for remotely resetting the communication device. In addition, since the communication device requires an air cooling facility, it is necessary to monitor environmental information such as temperature from a remote location.

  As a technique for transferring such a ground signal between buildings, for example, those described in Patent Document 1 to Patent Document 3 are known.

Japanese Patent Laid-Open No. 08-161201 Japanese Patent Laid-Open No. 05-037661 JP 2000-253005 A

  However, when a ground signal is wired between buildings, it receives electrical noise such as lightning damage and interference signals. For this reason, it is necessary to install a noise countermeasure circuit, a device for collecting and controlling a geological alarm in the building, and a device for monitoring the environment. In particular, in the case of small buildings, installing a device that collects geological alarms conveys information to other buildings where the centralized monitoring device is installed, as well as the installation and operation costs of the warning and monitoring devices. Network equipment is required. This leads to an increase in cost when the telecommunications carrier provides a service to the user.

  However, the prior art described in the above-mentioned patent document has no consideration for noise countermeasures and transfer of environmental monitoring information, and it has been difficult to reduce the burden on communication carriers. Such a problem is present not only in the telecommunications carrier but also in other fields where geological information needs to be transferred.

  An object of the present invention is to provide a ground information transfer device that is excellent in noise countermeasures and can transfer data other than ground information such as environmental monitoring information.

The geophysical information transfer device of the present invention is characterized by having the following configuration.
(1) A transmission-side ground information transfer device that optically converts ground information detected in a transmission-side building.
(2) A receiving-side ground information transfer apparatus that receives an optical signal in a receiving- side building and converts the optical signal so as to return to the ground information detected in the transmitting-side building .
(3) An optical cable for connecting the ground information transfer device on the transmission side and the ground information transfer device on the reception side,
(4) The transmission-side ground information transfer device includes: a frame assembly circuit that incorporates environmental information detected in the transmission-side building and the ground information into one frame signal; and a ground in the transmission-side building. An input-side photocoupler for inputting air information, a grounding relay for detecting contact information of a communication device accommodated in the building on the transmitting side, and a ground signal that is in an open / closed state of the grounding relay by a voltage applied from a power source And a time-division scan circuit for controlling the input-side photocoupler .
(5) The receiving-side ground information transfer device includes a frame processing circuit that outputs ground information and environmental information separately from a received frame signal, and a device for collecting ground information output from the frame processing circuit. And an environmental information collection device.

In the present invention, it is preferable to employ the following configuration.
(1) The transmission-side ground information transfer device includes a scan control circuit and a latch circuit that collect a plurality of ground information in a time-sharing manner and output the information at regular intervals.
(2) The receiving-side ground information collecting device is adapted to connect the transmitting-side ground information transferring device to the equipment provided in the transmitting-side building, based on the ground information output from the frame processing circuit. Output a reset signal.
(3) The environment information is information obtained by a temperature sensor provided in a transmission-side building.

  Since the present invention can realize optical transmission of contact information, it is possible to provide an earth information transfer device that is not affected by lightning damage or electrical noise. Moreover, since environmental information such as temperature can be transmitted in addition to geological information, a monitoring system can be realized.

It is a figure which shows the whole structure of 1st Embodiment. FIG. 3 is a block diagram of a time division scan circuit in the first embodiment. It is a block diagram which shows the apparatus of the transmission side in 1st Embodiment. It is a block diagram which shows the apparatus of the receiving side in 1st Embodiment.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
[1. First Embodiment]
(1) Overall Configuration As shown in FIG. 1, the apparatus according to the present embodiment includes a plurality of transmission buildings B and C (only two buildings are shown as an example) and each transmission building B and C. It is provided in the receiving side building A that collects geological information.

  A plurality of communication devices 1 are accommodated in the transmission side buildings B and C as equipment to be monitored. Each communication device 1 is provided with a ground wire 2 that outputs the contact information as ground information, and the ground wire 2 of each communication device 1 is connected to the terminal block 3 of the ground information transfer device 4 on the transmission side. Is done. That is, an alarm notification line (not shown) for detecting a power loss or the like is provided in each communication device 1, and this alarm notification line is connected to the ground line 2. As a result, when the communication device 1 is out of order, information related to the state of the contact for alarm notification is output to the ground information transfer device 4 on the transmission side as ground information.

  The transmitting buildings B and C are provided with a device for collecting environmental monitoring information. In the present embodiment, this device is the temperature sensor 5 that measures the room temperature in the building, but is not necessarily limited thereto. The temperature sensor 5 that detects the temperature of each communication device 1 may be a sensor that measures the humidity inside the building, or may be an anemometer or a water level meter that measures the effect on communication equipment during a typhoon or flood. The output line of the temperature sensor 5 is connected to the transmission side ground information transfer device 4 via the terminal block 3.

  In the receiving side building A, a receiving side ground transfer device including a terminal block 3, a grounding information collecting device 7 received from each transmitting side building B, C, and an environmental information collecting device 8 are provided. It is done. The geological information collecting device 7 and the environmental information collecting device 8 are provided with a display device for the collected information contents, a printing device, a device for generating an alarm based on the collected information, and the like. In particular, the geophysical information collecting device 7 is provided with a reset signal generating device 9 that transmits a signal for restarting the communication device 1 to the transmitting buildings B and C.

(2) Geological information transfer device 4 on the transmission side
As shown in FIG. 2, the ground information transfer device 4 on the transmission side includes an input side photocoupler circuit 41 that inputs a ground signal, a ground relay 42 that detects contact information of the communication device 1, and these circuits. A time-division scan circuit 43 to be controlled and a frame assembly circuit 44 for converting a ground signal obtained by the time-division scan circuit 43 into a frame synchronization signal for transmission are provided. Measurement data from the temperature sensor 5 is input to the frame assembly circuit 44 via an analog / digital converter (hereinafter referred to as A / D) 45.

  A transmission side synchronization circuit 46 and a parallel / serial converter (hereinafter referred to as P / S) 47 are connected to the output side of the frame assembly circuit 44. The frame assembly circuit 44 receives a clock signal from the transmission side synchronization circuit 46 and generates a frame synchronization signal. These circuits are constituted by FPGA. An electrical / optical signal converter (hereinafter referred to as E / O) 48 is connected to the output side of the P / S 47, and the E / O 48 is connected to the optical cable 10 connecting the transmission side buildings B and C and the reception side building A. It is connected. The optical cable 10 is provided with a coupler 11 that connects a plurality of transmission-side ground information transfer apparatuses 4 to a reception-side ground information transfer apparatus 6.

(3) Time division scan circuit 43
As shown in FIG. 3, the time division scan circuit 43 includes a ground input unit 431, a scan control circuit 432, and a latch circuit 433. The ground input unit 431 is connected to the ground relay 42 provided in the communication device 1 in the building via the ground input terminal 434. The ground input unit 431, the ground relay 42, and the ground input terminal 434 are provided in accordance with the number n of the communication device 1 to be monitored. In the present embodiment, the number n is 256 at the maximum. A voltage is applied from the power source to the ground input unit 431, and the open / close state of the ground relay 42, that is, the input state of the ground signal is detected by this voltage.

  The output unit of the control system of the ground input unit 431 is connected to the scan control circuit 432, and the input state of the ground signal detected by the ground input unit 431 is output to the scan control circuit 432. The scan control circuit 432 is grounded in the transmission side buildings B and C via the ground terminal 435. The scan control circuit 432 turns on and off the voltage applied to the ground terminal 435 in accordance with an instruction from the latch circuit 433, and allows the current from the ground input unit 431 to flow only in the on state.

  A latch circuit 433 is connected to an output unit of ground information in the ground input unit 431. As an example, the latch circuit 433 controls the input of ground information from the ground input unit 431 in units of 16 terminals. The ground information received from the input unit 431 is latched and output to the frame assembly circuit 44. Therefore, the output of the control system of the latch circuit 433 is connected to the scan control circuit 432, and the scan control circuit 432 is set to the on state based on the input on control signal from the latch circuit 433. As a result, the ground input unit 431 is grounded via the ground terminal 435, a current flows through the ground input unit 431, and ground information is input to and output from the latch circuit 433.

(4) Geoinformation transfer device 6 on the receiving side
As shown in FIG. 4, the receiving-side ground information transfer device 6 is an optical-electrical converter (hereinafter referred to as O / E) 61 that converts ground information sent via the optical cable 10 into an electrical signal. And a converter (hereinafter referred to as P / S) 62 for converting an electric signal in a serial format into a parallel format, a receiving side synchronization circuit 63, and a received frame processing circuit 64. A first output unit of the frame processing circuit 64 is connected to the environment information collecting device 8 via a serial / parallel converter (hereinafter referred to as S / P) 65. These circuits are constituted by FPGA. The second output unit of the frame processing circuit 64 is connected to the ground input / output control unit 66, and the ground input / output control unit 66 collects ground information via the output side relay 67 and the output side photocoupler circuit 68. Connected to device 7.

(2) Operation The operation of the geophysical information transfer device of the present embodiment is as follows.

  When transmitting / receiving a frame signal incorporating ground information between the ground information transfer device 4 on the transmission side and the ground information transfer device 6 on the reception side, it is necessary to adjust the transmission timing between the two devices. This adjustment is performed by a known method.

  For example, at the time of start-up of the device, the ground information transfer device 4 on the transmission side receives the delay adjustment frame signal from the ground information transfer device 6 on the reception side, and updates the parameters for transmitting the frame transmission timing. Next, in the ground information transfer device 4 on the transmission side, the frame assembly circuit 44 receives the frame signal from the ground information transfer device 6 on the reception side via P / S 47 and generates a frame transmission timing. . The reception-side ground information transfer device 6 monitors the response signal from the transmission-side ground information transfer device 4 and transmits a delay adjustment frame if it is determined that initialization has not been performed. After the delay adjustment response frame is normally received from the transmission-side ground information transfer device 4, the subsequent ground information is transmitted and received.

  When the communication device 1 loses power or other failure occurs, the grounding relay 42 is turned on, and the ground information is transmitted via the input side photocoupler circuit 41 and the ground input terminal 434 to the ground information on the transmission side. It is sent to the ground input unit 431 of the transfer device 4. In this case, it is preferable to perform filtering processing and collation processing in order to remove noise in the ground information in the ground-side information transfer device 4 on the transmission side.

  The input-side photocoupler circuit 41 inputs the ground signal in a few ms under the control of the time division scan circuit 43. That is, the scan control circuit 432 provided in the time division scan circuit 43 outputs the ground information from the ground input unit 431 to the latch circuit 433 in units of 16 terminals based on the ON control command from the latch circuit 433. The latch circuit 433 outputs the received ground information to the frame assembly circuit 44.

  On the other hand, since the environmental information from the temperature sensor 5 is input to the frame assembly circuit 44, the frame assembly circuit 44 incorporates the ground information and the environmental information in one frame to create transmission data. At this time, the frame assembly circuit 44 receives a clock signal from the transmission side synchronization circuit 46 and generates a frame synchronization signal.

  The P / S 47 that has received the frame signal from the frame assembly circuit 44 converts the parallel data into serial data and transmits the data to the E / O 48. The E / O 48 converts an electrical signal into an optical signal, and transmits data to the ground information transfer device 6 on the receiving side via the optical cable 10 and the coupler 11.

  In the geophysical information transfer device 6 on the receiving side, the O / E 61 converts the received optical signal into an electric signal and transmits data to the S / P 62. The S / P 62 extracts a clock from the received data, and transmits parallel data to the frame processing in synchronization with the CLK signal from the reception side synchronization circuit 63. The frame processing circuit 64 extracts ground information from the received frame signal and outputs a control signal to the ground output control unit. The ground output control unit performs various processes according to the content of the ground information, for example, output of an alarm, according to the input ground information. In addition, since a computer-related failure such as the communication device 1 is often resolved by resetting, regarding the geological information from such equipment, the output-side relay 67 is controlled and provided in the communication device 1. The received grounding relay 42 is opened, and a contact signal for resetting the communication device 1 is output.

  Similarly, the frame processing circuit 64 receives the temperature information from the temperature sensor 5 in the received frame signal, so that it is extracted and output to the environment information collection device 8. The environmental information collection device 8 outputs an alarm and records and outputs temperature data based on the received temperature information.

(3) Effects According to the present embodiment, the following effects are exhibited.
(A) It is possible to reduce the contact monitoring cost of a building having a small communication facility. In particular, since contact information of a plurality of buildings can be centrally monitored at the receiving-side building A by optical transmission, it is possible to improve maintainability for a large number of facilities such as the communication devices 1 distributed in the plurality of buildings.

(B) Since geological information is optically transmitted between buildings, it is possible to avoid the influence of operation due to the difference in geopotential between buildings. In other words, in the prior art in which buildings are connected with metal cables, there is a possibility that the ground potential difference between different buildings may affect the operation. However, each building is electrically separated by using an optical transfer device. It can be operated according to the geological information.

(C) In the prior art, since it is not possible to distinguish between a cable cut state and a circuit open state, the cable cut cannot be detected and repaired. According to the present embodiment, it is possible to monitor cable disconnection that occurs between devices on the transmission side and the reception side.

(D) Geophysical monitoring is often used as a backup in the event of a catastrophic disaster, and is an important interface from an operational point of view. The device of this embodiment can also be used for monitoring a building submerged due to a typhoon.

(E) The equipment cost can be further reduced by providing the receiving-side ground information transfer device 6 with a function of automatically resetting the communication equipment when a ground alarm is generated.

(F) The frame assembly circuit 44 incorporates ground information and environmental information into one frame signal for transmission, so the temperature information of the small-scale equipment is A / D converted, and the temperature information in the building with the ground collection device Can be monitored.

(G) Since the time-division scan circuit 43 is mounted, it is possible to scan and transmit a small amount of ground information at a constant cycle, and it is possible to reduce power consumption.

[2. Other Embodiments]
The present invention is not limited to the above-described embodiments, and includes other embodiments as follows.
(1) When there is a distance on the relay path, the transfer distance is extended by an optical amplifier.
(2) By integrating the ground information transfer device on the receiving side and the ground information collecting device, it is possible to reduce the number of terminals and ground wires in the building on the receiving side, and to further improve noise resistance. .

A ... Building B, C on reception side ... Building 1 on transmission side ... Communication device 2 ... Ground wire 3 ... Terminal block 4 ... Ground information transfer device 5 on transmission side ... Temperature sensor 6 ... Ground information transfer on reception side Device 7 ... Geo information collection device 8 ... Environmental information collection device 9 ... Reset signal generator 10 ... Optical cable 11 ... Coupler 41 ... Input side photo coupler circuit 42 ... Ground relay 43 ... Time division scan circuit 431 ... Geo input unit 432 ... Scan control circuit 433 ... Latch circuit 434 ... Ground input terminal 435 ... Ground terminal 44 ... Frame assembly circuit 45 ... A / D
46... Transmission side synchronization circuit 47... P / S
48 ... E / O
61 ... O / E
62 ... S / P
63 ... Receiving side synchronization circuit 64 ... Frame processing circuit 65 ... S / P
66 ... Ground input / output controller 67 ... Output side relay 68 ... Output side photocoupler circuit

Claims (4)

A transmission-side ground information transfer device that optically converts ground information detected in the transmission-side building;
A receiving-side ground information transfer device that receives an optical signal in the receiving- side building and converts the optical signal to return to the ground-information detected in the transmitting-side building ;
An optical cable connecting the ground information transfer device on the transmission side and the ground information transfer device on the reception side,
The transmission-side ground information transfer device includes environmental information detected in a transmission-side building and a frame assembly circuit that incorporates the ground-information in one frame signal, and ground information in the transmission-side building. Input side photocoupler to input, grounding relay for detecting contact information of a communication device accommodated in a building on the transmitting side, and an input state of a ground signal that is an open / closed state of the grounding relay by a voltage applied from a power source And a time-division scan circuit for controlling the input-side photocoupler ,
The receiving-side ground information transfer device includes a frame processing circuit that outputs ground information and environmental information separately from a received frame signal, a ground information collecting device that is output from the frame processing circuit, an environment, A geological information transfer device comprising an information collection device.   The ground information transfer device according to claim 1, wherein the ground information transfer device on the transmission side includes a scan control circuit and a latch circuit that collect a plurality of ground information in a time division manner and output the information at regular intervals.   Based on the ground information output from the frame processing circuit, the receiving-side ground information collecting device sends a reset signal to the equipment provided in the transmitting-side building to the transmitting-side ground information transferring device. The ground information transfer device according to claim 1 or 2, wherein the ground information transfer device outputs the ground information.   The ground information transfer device according to any one of claims 1 to 3, wherein the environmental information is information obtained by a temperature sensor provided in a building on a transmission side.

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