JPH1131284A - Slave station managing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily detect a person falling in the sea by providing a transmission part transmitting recognition data and recognized data of a master station itself for a master station, storing various pieces of data from a transmission part and outputting a warning signal when received data of a prescribed slave station do not exist for prescribed time. SOLUTION: The transmission part for inputting a received radio wave received in a reception antenna 13, detecting the intensity of the radio wave, recognition data of the slave station 11, which are contained in the received radio wave, and reception time, adding recognition data of the master station 12 itself to intensity data of the detected radio wave, ID data and reception time data and transmitting it to the management part 14 is provided for the master station 12. Various data transmitted from the transmission part are stored in the data storage part of the management station 14 and data from the data storage part are inputted to a warning device. The warning signal is outputted when it is judged that data from the slave station 11 do not exist for prescribed time by operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slave station management system.

[0002]

2. Description of the Related Art Conventionally, when a worker working on a quay or the like falls (falls) from the quay to the sea surface, the worker who works near the quay can be found by looking at the worker. I was relying on.

[0003]

As described above, there has been a problem that the visual monitoring of the worker cannot always quickly and surely detect a falling person.

[0004] Therefore, an object of the present invention is to provide a management system for a slave station that can quickly and surely detect a person falling on the sea surface or the like.

[0005]

In order to solve the above-mentioned problems, a slave station management system according to the present invention comprises a movable slave station capable of transmitting radio waves, and a receiving station for receiving radio waves transmitted from the slave stations. And a management station wirelessly or wiredly connected to the master station, wherein the radio wave transmitted from the slave station includes identification data of the slave station itself. A detection unit for detecting recognition data from a received radio wave from the slave station, and a transmission unit for transmitting the recognition data detected by the detection unit and the recognition data of the master station to the management station. The management station further includes an alarm unit that stores various data transmitted from the transmission unit of the master station and outputs an alarm signal when reception data of a certain slave station is not present for a predetermined time. It is a thing.

According to the configuration of the slave station management system, the radio wave transmitted from the slave station is received by the master station, and the data regarding the slave station obtained by the master station is managed by the management station. Therefore, when a slave station goes out of the control area, the management station can quickly and surely grasp the situation, and for example, carry this slave station to workers who work on the quay or ship. If so, it is possible to quickly detect a drop on the sea surface.

Further, the management station in the slave station management system having the above configuration is provided with a display device for displaying the position of the receiving section of the master station, and the display device can detect the radio wave received from the slave station in the master station. By displaying the range, the management area can be easily grasped.

Further, in the slave station management system having the above-mentioned respective configurations, a specific area input / output monitoring unit for monitoring the entry / exit of the slave station into / from a specific area provided within a detectable range of a radio wave received from the slave station in the master station. In addition to having a specific area, for example, when entering a specific area, for example, when entering a building, by going out of the control area, the specific area input / output monitoring unit is configured to transmit the entry / exit data of the slave station to the management station side. Is prevented from being determined.

Further, in the slave station management system of each of the above configurations, the radio wave transmitted from the slave station is received and its output intensity is detected, and when the detected output intensity is weaker than a predetermined value, the fact is notified. By providing the slave station inspection unit for notifying the slave station, it is possible to notify the radio transmission state of the slave station.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A slave station management system according to an embodiment of the present invention will be described below with reference to FIGS.

In this embodiment, for example, when an operator falls (falls) from the quay onto the sea surface (of course, it can also be applied to a quay such as a lake), the occurrence of the fall is detected. Is applied to a system for this purpose.

As shown in FIG. 1 and FIG. 2, this slave station management system 1 transmits a radio signal for transmitting a predetermined radio signal, that is, a radio signal including recognition data for identifying itself, while being carried by an operator M. Container (hereinafter referred to as a slave station) 1
1 and a plurality of radio receivers (hereinafter, referred to as master stations) 12 which are installed at a plurality of locations on the quay 2 and have a receiving antenna (reception unit) 13 for receiving radio signals transmitted from the slave stations 11. And a management station facility (hereinafter, referred to as a management station facility) for wirelessly (or wired) inputting predetermined detection data received by the master station 12 and detected by the master station 12 to manage the state of the slave station 11. , A management station) 14.

A radio wave received by the receiving antenna 13 is input to the master station 12, and the strength of the radio wave, the identification data (hereinafter referred to as ID data) of the slave station 11 included in the received radio wave, and the received radio wave are received. A detection unit (detection circuit) for detecting time and intensity data of radio waves detected by the detection unit;
A transmission unit (transmission circuit) is provided which adds the identification data of the master station 12 itself, that is, the ID data of the master station 12, to the ID data and the reception time data and transmits the data to the management station 14.

In the management station 14, the master station 1
And a data storage unit for inputting and storing various data transmitted from the transmission unit 2 and a data input from the data storage unit to determine by operation that data from the slave station 11 does not exist for a predetermined time. In this case, a judgment unit (judgment circuit) for outputting an alarm signal to an alarm device (alarm unit) is provided. In addition, the management station 14 sets the radio wave receivable range of each master station 12 from the slave station 11. A radio wave reception range storage unit that stores the radio wave reception range and a monitor device (display device) that displays the radio wave reception range stored in the radio wave reception range storage unit on a screen are provided.

Since there are a plurality of slave stations 11, the radio signals, eg, pulse signals, transmitted from the slave stations 11 are shifted in timing at their rising portions so that the periods are different from each other, and the signals are shifted. It is considered not to overlap each other.

By the way, a building 3 such as a building is usually built on the quay 2, and when the worker M, that is, the child station 11 enters the building 3,
There is no need to manage the slave station 11.

For this reason, at the entrance / exit section 3a of the building (specific area) 3, an entry / exit monitoring master station (specific area entry / exit monitoring section) 15 which is a radio wave receiver for monitoring the entry / exit of the slave station 11 is arranged. At the same time, data indicating the entry / exit status of the slave station 11 detected by the entry / exit monitoring parent station 15 is transmitted to the management station 14.

That is, at the entry / exit monitoring master station 15,
As soon as it is detected that the slave station 11 has entered the building 3, the ID data and the reception time data of the slave station 11 and the data indicating that it has entered are transmitted to the management station 14,
The data is stored in the data storage unit, and the management of the slave station 11 is stopped. When the slave station 11 comes out of the building 3, data (including time data) indicating that the slave station 11 has left the entry / exit monitoring master station 15 is also transmitted to the management station 14, and the slave station 11 is controlled by the management station 14. To be placed.

The fact that the slave station 11 has entered the building 3 is detected by the entry / exit monitoring master station 15 and then the slave station 11 is detected.
Is judged to be impossible to detect the radio wave, and conversely, when the slave station 11 leaves the building 3, the management station 14
Is detected by the entry / exit monitoring master station 15 and the master station 12 smoothly detects the slave station 11 in a time-series manner. Is placed under the control of a controlled area.

Further, in some cases, it is determined that the slave station 11 has left the building 3 and the master station 12 has just received radio waves from the slave station 11 and thus has entered the control of the management station 14. You may do so.

Further, the slave station management system 1 is provided with a slave station inspection station (not shown) as a slave station inspection section for detecting an output state of a radio wave transmitted from the slave station 11. .

The slave station inspection station is provided at a predetermined position on the quay 2 (regardless of inside or outside the management area).
A level detection unit (level detection circuit) for detecting the output level (output state) of the radio wave received from the slave station 11, and comparing the level detected by the level detection unit with a predetermined threshold value (sensitivity); A judgment unit (judgment circuit) for judging the strength and, as a result of the judgment by the judgment unit, especially when the level is weak, a warning recommending a check of the slave station 11 (replacement of the battery, check of a malfunction of the slave station itself). A transmission unit (transmission circuit) for transmitting to an alarm unit (for example, a device that generates sound, vibration, or the like) provided on the slave station 11 side is provided.
In addition, the setting of the threshold value can be changed.

In some cases, a warning is not sent to the slave station 11 and the fact is indirectly notified to the worker carrying the slave station 11 by an installed display device or sound / light. You can also.

In another method, only when the strength of the radio wave is determined to be stronger than the threshold value, the message that "the slave station is operating normally" is sent to the slave station or the display device. The information may be transmitted to the mobile station of the slave station by means such as sound or light.

The slave station inspection station is connected to the management station by radio or wire, and data to be transmitted to the slave station 11 is also transmitted to the management station 14 so that the management station 14 monitors the status of the slave station 11. You may make it.

In the above-described configuration, a radio transmitter, that is, a slave station 11 is carried by an operator M working on the quay 2, and the radio waves transmitted from the slave station 11 allow the worker M to carry the quay 2. 2. It is controlled whether it is located in the safe management area above, that is, whether it is falling on the sea surface.

More specifically, a radio wave transmitted from the slave station 11 is received by the master station 12 via the receiving antenna 13 and the slave station 1 included in the received radio wave.
The ID data of the master station 14 received together with the ID data 1, the received radio wave intensity data, and the reception time data are stored in the
Sent to.

In the data storage section of the management station 14, the data of the slave station 11 transmitted from the master station 12 is stored within a certain time range and in a time series. If the data is not received, in the determination unit, it is determined that it has moved out of the management area, that is, it has been dropped, a warning signal is transmitted to the warning device, by voice, emergency sound, light, etc. Notified to administrators and all concerned.

When this water drop occurs, the fact is also displayed on the monitoring device on the management station 14 side, and all the children located in the management area are displayed on the monitoring device on the management station 14 side. The current position of the station (operator) 11 is displayed, and, for example, for the slave station 11 that has moved out of the management area, the position immediately before the signal cannot be received is displayed, for example, as a blinking signal. In addition, the overall state can be grasped by this monitor device.

As described above, when the worker M is in the building 3, this is detected by the entry / exit monitoring master station 15 and transmitted to the management station 14 side. Therefore, the management station 14 does not consider that the water has fallen.

In the above description, the reception time data when the data of the slave station 11 is stored in time series is the time data when the master station 12 receives the data from the slave station 11. The time data at the time when the management station 14 receives the data from the slave station 11 from the master station 12 can also be used.

Incidentally, in addition to the above functions, this slave station management system has a function of checking whether each master station 12 is operating normally. That is, when a signal for starting an inspection is transmitted from the management station 14 to a predetermined master station 12, an inspection signal is transmitted from the master station 12. When the test signal is received by the adjacent predetermined master station 12, the reception result is transmitted to the management station 14 and the test signal is transmitted to the next adjacent master station 12. .

As described above, the inspection signal is transmitted from the master station 12 to another adjacent master station 12, and the reception result is sequentially transmitted to the management station 14. Can be inspected for the occurrence of operation failure due to a failure or the like.

In the above-described embodiment, an example has been described in which a worker on the quay carries a slave station, which is a radio wave transmitter, to monitor the falling water of the worker. By arranging a plurality of master stations, at least the receiving antennas thereof, and setting the control area on the ship, the present invention can be applied to a system for monitoring a worker, that is, a crew member, falling on the sea surface. In this case, the management station, the monitor device, the alarm device, and the like may be installed in the wheelhouse. Of course, if the inspection bureau is also located on the ship,
Safety management is further strengthened.

[0035]

As described above, according to the configuration of each slave station management system according to the present invention, the radio wave transmitted from the slave station is received by the master station, and the slave station obtained by the master station is related. Since the data is managed by the management bureau,
When the slave station goes out of the control area, the control station can quickly and surely grasp the situation, and for example, carry this slave station to workers working on the quay or ship. If this is the case, it is possible to quickly detect a drop on the sea surface, and thus it is possible to reliably perform rescue.

In addition, the management station sends a notice to that effect to the rescue device, so that the rescue operation can be performed more quickly.

[Brief description of the drawings]

FIG. 1 is a plan view showing a schematic configuration of a slave station management system according to an embodiment of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 slave station management system 2 quay 11 radio wave transmitter (slave station) 12 radio wave receiver (master station) 13 receiving antenna 14 management facility (management station) 15 master station for entry / exit monitoring

Claims (5)

[Claims] 1. A mobile station capable of transmitting a radio wave, a master station having a receiving unit for receiving a radio wave transmitted from the slave station, and a management station connected to the master station wirelessly or by wire. A management system for a slave station, comprising: a radio wave transmitted from the slave station, including identification data of the slave station itself; and a detection unit configured to detect the recognition data from the radio wave received from the slave station to the master station. And a transmission unit for transmitting the recognition data detected by the detection unit and the recognition data of the master station itself to the management station. The management station further stores various data transmitted from the transmission unit of the master station. And a warning unit that outputs a warning signal when reception data of a certain slave station is not present for a predetermined time. 2. The slave station management system according to claim 1, wherein the management station is provided with a display device for displaying the position of the receiving section of the master station. 3. The slave station management system according to claim 2, wherein the display device displays a detectable range of radio waves received from the slave station in the master station. 4. A specific area entry / exit monitoring unit for monitoring the entry / exit of a child station into / from a specific area provided within a detectable range of a radio wave received from a child station in the parent station. The slave station management system according to any one of claims 1 to 3, wherein the slave station is configured to transmit incoming / outgoing data of the slave station from the unit to the management station side. 5. A slave station inspection unit for receiving a radio wave transmitted from a slave station, detecting an output intensity thereof, and notifying the slave station when the detected output intensity is weaker than a predetermined value. The slave station management system according to any one of claims 1 to 4, wherein