JP2003244153A - Network apparatus and monitoring apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a network apparatus capable of easily realizing on/off control of a main power source in response to a command from an external apparatus on a network by a simple operation. <P>SOLUTION: Upon receiving notification that the main power source is turned off from an external device, the apparatus disconnects a first communication means from the network, and connect a second communication means to the network. Upon receiving notification that the main power source is turned on from the external device, the apparatus disconnects the second communication means from the network, and connect the first communication means to the network. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network device such as a monitoring device for monitoring and controlling a plurality of station service devices used in railways.

[0002]

2. Description of the Related Art Conventionally, automatic ticket gates for controlling the passage of users have been used in transportation facilities such as railways. Automatic ticket gates used in such railways are monitored and controlled by a monitoring system. In such a monitoring system, a plurality of automatic ticket gates are connected to one monitoring device installed at each station or each ticket gate. The above monitoring device monitors the operating status of each automatic ticket gate,
It controls the operation of each automatic ticket gate. Usually, station staff (operators) are stationed at each station or at each ticket gate, and the station staff operates the monitoring device. However,
When there is no station staff (operator) at a remote station, the monitoring device installed at the remote station is controlled by the center computer of the remote station so that the control station can control the automatic ticket gates at the remote station. A station service system that can be controlled is built.

In such a station service system, on / off control of the power supply to the automatic ticket gate and the monitoring device by the center computer is an indispensable control. Since the power supply of the automatic ticket gate can be controlled by the monitoring device, if the monitoring device is operating, the on / off control of the automatic ticket gate can be easily realized by an instruction from the center computer.

However, there are few cases where the center computer controls the on / off of the power of the monitoring device itself.
For example, as a method of controlling the power supply of the monitoring device from the center computer, there is a method of controlling the power supply to be turned on or off by a telegram command from the center computer.

Normally, the monitoring device is provided with one CPU for controlling the entire monitoring device. In a monitoring device with only one CPU, communication with the center computer is normally possible when the power is on, so it is possible to easily turn off the power of the monitoring device by telegram, but when the power is off. Since communication with the center computer is impossible, it is not possible to easily turn on the power with a telegram command.

When the power supply of the monitoring device is controlled to be turned on and off by the center computer by the above method, the first CPU which communicates with the center computer when the power supply is on
Then, a second CPU that communicates with the center computer when the power is off is required. Therefore, two CPUs
However, in order to perform communication using one LAN control IC, it is necessary to design dedicated hardware in order to control the LAN control IC with two CPUs.

That is, since a general CPU board cannot be used in a remote monitoring device designed with dedicated hardware and capable of controlling power supply from a center computer, power supply control is performed by an operator for normal use. The specifications are different from those of the above monitoring device, and the developer needs to develop two types of monitoring devices. Furthermore, if the remote monitoring device and the normal monitoring device are designed with different hardware, it is necessary to prepare two types of software, one for the remote monitoring device and one for the normal monitoring device. Occur. Therefore,
When changing the above-mentioned normal monitoring device to a remote monitoring device, it is necessary to replace both hardware and software, which is very inefficient.

[0008]

As described above, there is a problem in that it is not possible to easily develop a network device capable of on / off control of a main power supply according to an instruction from an external device on the network with a simple configuration. It is an object of the present invention to provide a network device and a monitoring device that can easily realize on / off control of a main power supply according to an instruction from an external device on a network with a simple work.

[0009]

A network device of the present invention is connected to an external device via a network, and is provided with an address indicating the network device on the network, and the main power source of the network device is provided. Is on, when the first communication means for controlling communication with the network and the same address as the first communication means are assigned and the main power supply of the network device is off, The second communication means for controlling communication with the network, and the first communication means, when the first communication means receives a notification from the external device on the network that the main power source of the network device is turned off.
The communication means of the second from the network,
The first control means for connecting the communication means of the above to the network and the second communication means when receiving a notification from the external device on the network that the main power source of the network device is turned on. And a second control means for disconnecting the second communication means from the network and connecting the first communication means to the network.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing a configuration of a station service system in which a monitoring device as a network device of the present invention is used. In this station service system, as shown in FIG. 1, a plurality of automatic ticket gates 2 are connected to a monitoring device 1. The monitoring device 1 further includes a HU
It is connected to a center computer (upper device) 4 on the LAN via B3.

The monitoring device 1 is provided at each station or each corner such as a ticket gate. The monitoring device 1 monitors and controls each automatic ticket gate 2 installed at the corner. For example, the monitoring device 1 displays the operation status of each automatic ticket gate 2 and the error content of the automatic ticket gate in which the error has occurred. Further, the monitoring device 1 controls power on / off control of each automatic ticket gate and controls opening / closing of a door of each automatic ticket gate based on an instruction from an operator or a center computer.

The monitoring device 1 is connected to the LAN via the HUB 3 and is connected to the center computer 4 on the LAN. The monitoring device 1 has a function of controlling each automatic ticket gate 2 based on a control command or control data from the center computer 4. The monitoring device 1 controls its own power supply based on an instruction from the center computer 4.

The automatic ticket gate 2 is installed, for example, at a ticket gate of a train station. The automatic ticket gate 2 controls the passage of the user at the ticket gate. For example, automatic ticket gate 2
Determines whether the user is permitted to pass or not based on a ticket or the like possessed by the user, and controls entrance from the outside of the station to the inside of the station or from outside of the station to outside the station.
Further, each automatic ticket gate 2 is connected to the monitoring device 1 and notifies the monitoring device 1 of an operating state or operates according to an operation instruction from the monitoring device 1.

The center computer 4 is connected to a monitoring device 1 installed in various places via a LAN. For example, the center computer 4 is a station staff (operator).
Will be installed at a management station that manages a remote station that is not resident.
This center computer 4 is transferred to the L
The monitoring devices 1 connected to the AN and the automatic ticket gates 2 connected to the monitoring devices 1 are monitored and controlled.

Next, a schematic configuration of the monitoring device 1 will be described. As shown in FIG. 1, the monitoring device 1 is composed of a control unit 11, a display device 12, a communication unit 13, a power supply unit 14, and the like. The control unit 11 includes the monitoring device 1
It controls the whole. The configuration of the control unit 11 will be described later. The display device 12 is the monitoring device 1
The operating states of the automatic ticket gates 2 connected to are displayed. Further, the display device 12 has a built-in touch panel as an operation unit 12a, and an operation by an operator is input. The operator uses the touch panel to instruct ON / OFF of the power supply of the automatic ticket gate 2 and the operating state of the automatic ticket gate 2. The communication unit 23 is an interface that performs data communication with each automatic ticket gate 2. The power supply unit 14 supplies power to each unit under the control of the control unit 11.

Next, the internal structure of the control unit 11 will be described in detail. FIG. 2 is a block diagram showing a configuration inside the control unit 11. Note that the configuration example of the control unit 11 shown in FIG. 2 is an example of the configuration of the control unit 11 of the remote monitoring device 1 that is capable of on / off control of the main power supply by the center computer 4.

As shown in FIG. 2, the control unit 11 includes a main CPU 21, a sub CPU 22, a LAN control IC 23, and an LA.
It has an N control IC 24, a driver 25, a driver 26, a maintenance unit 27, and the like. The main CPU 21 (first control means) controls the overall operation of the monitoring device 1. The main CPU 21 operates when the main power supply of the monitoring device 1 is on. That is, the main CPU 21
Operates according to the on / off state of the main power supply of the monitoring device 1.

The sub CPU 22 (second control means) is
On-control of the main power supply of the monitoring device 1 is performed based on the communication with the center computer 4. Subordinate C above
The PU 22 operates (activates) when the main power supply of the monitoring device 1 is in the off state, and does not operate when the main power supply of the monitoring device 1 is in the on state. The slave CPU 22 monitors a status line (not shown) indicating the on / off state of the main power source, and operates according to the status of the status line.

The LAN control IC 23 controls communication between the monitoring device 1 and the LAN. In addition, the driver 25
Is based on the control by the LAN control IC 23.
Sends and receives data to and from devices on N. The LAN control IC 23 and the driver 25 are on / off controlled in synchronization with the power supply state of the main CPU 21. That is, the above L
The AN control IC 23 and the driver 25 are turned on or off according to the on state or off state from the main CPU 21. The LAN control IC 23 and the driver 25 are
When the main power supply of the monitoring device 1 is on, it is connected to the HUB 3 and functions as a communication unit (first communication means) between the monitoring device 1 and the LAN.

The LAN control IC 24 controls communication between the monitoring device 1 and the LAN. In addition, the driver 26
Is based on the control by the LAN control IC 24.
Sends and receives data to and from devices on N. The LAN control IC 24 and the driver 26 are on / off controlled in synchronization with the power supply state of the slave CPU 22. That is, the above L
The AN control IC 24 and the driver 26 are turned on or off according to the on state or off state of the slave CPU 22. The LAN control IC 24 and the driver 26 are connected to the HUB 3 and function as a communication unit (second communication means) between the monitoring device 1 and the LAN when the main power source of the monitoring device 1 is off.

The maintenance unit 27 uses the LAN control IC 2
It functions as a setting means for setting the address of No. 4. The maintenance unit 27 has a maintenance program for setting the address of the LAN control IC 24. For example, when the LAN control IC 24 is added, when the LAN control IC 24 is replaced, or when the maintenance of the monitoring device is performed, the maintenance unit 27 activates the maintenance program to cause the LAN control IC 24 to operate.
The address setting is done.

Further, the normal monitoring device 1 in which the main power supply is turned on / off according to the operation of the operator who does not need the on / off control of the main power supply of the monitoring device 1 by the center computer 4 is required.
Then, the sub CPU 22, the LAN control IC 24, and the driver 26 are omitted. Also, the main CPU
21, general products can be used as the LAN control IC 21, the LAN control IC 23, and the driver 25.
4 and the driver 26 can also be general products. Therefore,
The normal monitoring device is the above-mentioned sub CPU 22, LAN control I
By adding the C24 and the driver 26, it becomes possible to change to the remote monitoring device 1.

Next, the on / off operation of the main power supply of the monitoring device 1 will be described. First, the operation when the main power supply of the monitoring device 1 is turned on from the off state will be described. In the following description, the LAN control ICs 23 and 24 are
It is assumed that the same physical address is given.

When the main power source of the monitoring device 1 is off, the slave CPU 22, the LAN control IC 24, and the driver 25 are supplied with power for power control from the power source section 14. That is, when the main power supply of the monitoring device 1 is off,
Slave CPU 22, LAN control IC 24, and driver 26
Then, the power supply for power supply control is turned on. As a result, when the main power supply of the monitoring device 1 is off, the monitoring device 1 is in a state where the LAN control IC 24 and the driver 26 can receive a telegram (a telegram command) from the center computer 4 via the LAN.

From the center computer 4 to the monitoring device 1
When receiving the telegram command for turning on the main power source of, the slave CPU 22 turns on the main power source of the monitoring device 1. Also,
When the main power supply of the monitoring device 1 is turned on, the slave CPU 22 sets L
The AN control IC 24 and the driver 26 are separated from the LAN, and the slave CPU 22, the LAN control IC 24 and the driver 2 are separated.
Disconnect the communication at 6.

When the main power supply of the monitoring device 1 is turned on by the sub CPU 22, the main CPU 21 starts the start-up operation. At the time of this start-up operation, the main CPU 21 activates the supervisory control program of the supervisory device 1, and each automatic ticket gate 2
The monitoring control of is executed. In addition, sub CPU2
When the main power supply of the monitoring device 1 is turned on by
21 is L by the LAN control IC 23 and the driver 25.
The main CPU 21, LAN control IC 23, and driver 25 are connected to the AN so that communication is possible.

When the main power source of the monitoring device 1 is turned on by such an operation, the communication between the monitoring device 1 and the LAN is performed by the slave CP.
The communication by the U22, the LAN control IC 24 and the driver 26 is switched to the communication by the main CPU 21, the LAN control IC 23 and the driver 25.

Next, the operation when the main power supply of the monitoring device 1 is turned off from the on state will be described. When the main power source of the monitoring device 1 is on, the main CPU 21, LAN
Power is supplied from the power supply unit 14 to the control IC 23 and the driver 25. That is, when the main power supply of the monitoring device 1 is on, the main CPU 21, the LAN control IC 23, and the driver 25 are on, and the slave CPU 2
2. The power to the LAN control IC 24 and the driver 26 is off. As a result, when the main power source of the monitoring device 1 is on, the monitoring device 1 is
The N control IC 23 and the driver 25 are ready to receive a message from the center computer 4 via the LAN. In this state, the monitoring device 1 transmits / receives a normal telegram to / from the center computer 4 via the LAN.

From the center computer 4 to the monitoring device 1
When receiving the message command to turn off the main power source of the above, the main CPU 21 performs the shutdown process of the entire monitoring device 1, and turns off the main power source after the completion of the shutdown process. When the main power supply of the monitoring device 1 is turned off, the main CPU
21 is a LAN control IC 23 and driver 25 LAN
Then, the communication with the main CPU 21, the LAN control IC 23, and the driver 25 is disconnected.

Further, the sub CPU 22 can monitor whether the main power source is on or off by a status line (not shown). Therefore, when the main power supply of the monitoring device 1 is turned off, the slave CPU 22, the LAN control IC 24,
Also, depending on how the power of the driver 26 is turned on,
The slave CPU 22 activates a power control program,
The slave CPU 22, the LAN control IC 24, and the driver 26 are started up, and the LAN control IC 24 and the driver 26 are connected to the LAN, so that the slave CPU 22, the LAN control IC
The communication with the driver 24 and the driver 26 is enabled. The above description has been made so that the sub CPU 22, the LAN control IC 24, and the driver 26 are turned off when the main power is on, but it is also realized by simply preventing the sub CPU 22, the LAN control IC 24, and the driver 26 from operating. It is possible.

As described above, in response to the telegram command for turning off the main power source via the network, the main CPU for turning off the main power source of the monitoring device in the on state and the telegram for turning on the main power source via the network. According to a command, a main CPU that turns on the main power of the monitoring device in the off state is provided, and exclusive control is performed so that the main CPU and the sub CPU do not simultaneously communicate with the network. . This makes it possible to easily realize on / off control of the main power supply according to a telegram command via the network.

Further, there are provided a first communication means for performing communication control when the main power supply is on, and a second communication means for performing communication control when the main power supply is off, and the first and second communication means are provided. The addresses on the network given to the communication means are the same. As a result, other devices on the network can recognize the monitoring device as one device, and the on / off control of the main power supply from the network can be performed without changing the settings on the network. A device can be provided.

Next, each LAN control I in the control unit 11 will be described.
A method of setting physical addresses for C23 and C24 will be described. The device on the LAN usually accesses each device on the LAN with one physical address. In other words, on the LAN, the center computer 4 accesses each monitoring device 1 as one monitoring device regardless of whether the main power supply is turned on or the main power supply is turned off. To do.

Normally, different physical addresses are given to the individual LAN control ICs. However, as in the present embodiment, the center computer 4 on the LAN also applies to the monitoring device 1 having the two LAN control ICs 23 and 24. Needs to recognize the monitoring device 1 as one device. For this reason,
Two LAN control ICs like the monitoring device 1 of this embodiment
For devices with 23, 24, the physical address must be the same.

A case will be described below in which the slave CPU 22, the LAN control IC 24 and the driver 26 are added to the monitoring device (normal monitoring device) 1 of the control unit having the main CPU 21 and one LAN control IC 23. For example, when the normal monitoring device that controls the on / off of the main power source by the operation of the operator is changed to the remote monitoring device that can control the on / off of the main power source by the center computer 4, the above-mentioned expansion is performed. Be seen.

When the LAN control IC 24 is added, different physical addresses are given to the LAN control ICs 23 and 24. Therefore, each device on the LAN cannot recognize the monitoring device 1 as one device. To solve this, when the LAN control IC 24 is added, the maintenance unit 27 executes a maintenance program that makes the physical addresses of the two LAN control ICs 23 and 24 the same.

In this maintenance program, first,
The main CPU 21 acquires the physical address given to the LAN control IC 23. When the physical address of the LAN control IC 23 is acquired, the main CPU 21 becomes a slave CPU.
22 to the physical address of the LAN control IC 23.
Then, the sub CPU 22 causes the LAN control IC 24 to operate.
To the same physical address as the physical address of the LAN control IC 23 sent from the main CPU 21. As a result, the LAN control IC 23 and the LA
The physical address of the N control IC 24 is set to be the same.

As described above, the monitoring device 1 includes the slave CPU 2
2. When the LAN control IC 24 and the driver 26 are added, the maintenance program matches the physical addresses of the two LAN control ICs 23 and 24. This allows two LAs
The slave CPU 2 that can easily match the physical addresses of the N control ICs 23 and 24 and easily has a general function
2. The LAN control IC 24 and the driver 26 can be added. In addition, equipment such as center computers on the LAN
The monitoring device can be recognized as one device,
LA for the monitoring device 1 having two LAN control ICs
It is possible to eliminate communication problems at N.

[0039]

As described in detail above, according to the present invention, a network device capable of easily realizing on / off control of a main power source according to an instruction from an external device on a network by a simple operation, and A monitoring device can be provided.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a station service system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration inside a control unit of the monitoring device.

[Explanation of symbols]

1 ... Monitoring device (network device), 2 ... Automatic ticket gate,
4 ... Center computer (external device, management device), 11
... control unit, 12 ... display device, 13 ... communication unit, 14 ... power supply unit, 21 ... main CPU (first control means), 22 ... slave CP
U (second control means), 23 ... LAN control IC (first communication means), 24 ... LAN control IC (second communication means), 27 ... Maintenance section (setting means)

Claims (6)

[Claims] 1. A network device connected to an external device via a network, when an address indicating the network device on the network is given and the main power source of the network device is in an on state, And a second communication means for controlling communication with the network, when the same address as that of the first communication means is assigned and the main power supply of the network device is in the off state. The first communication means is disconnected from the network when the communication means and the first communication means notify from the external device on the network that the main power source of the network equipment is turned off. The first control means for connecting the second communication means to the network, and the network by the second communication means. Second control for disconnecting the second communication means from the network and connecting the first communication means to the network when a notification to turn on the main power source of the network equipment is received from the external device And a network device comprising: 2. The first control means operates according to on / off of a main power supply, and the second control means monitors a signal indicating an on / off state of the main power supply, and the main power supply is turned off. The network device according to claim 1, wherein the network device operates in a case. 3. A network device connected to an external device via the network, when an address indicating the network device on the network is given and the main power supply of the network device is in the ON state, the network device is connected to the network device. On the network by the first communication means for controlling communication with the network device, the second communication means for controlling communication with the network when the main power source of the network device is off. A first control for disconnecting the first communication means from the network and connecting the second communication means to the network upon receiving a notification from the external device that the main power source of the network equipment is turned off. Means and the second communication means to supply main power to the network device from an external device on the network. And a second control means for disconnecting the second communication means from the network and connecting the first communication means to the network, and a second device for the network device. A network device comprising: a setting unit that assigns the same address as the address assigned to the first communication unit to the second communication unit when the communication unit is newly installed. . 4. The setting means transmits the address given to the first communication means by the first control means to the second control means, and is transmitted from the first control means. 4. The network device according to claim 3, wherein the address of the first communication means is given to the second communication means. 5. A monitoring device for monitoring and controlling the operating states of a plurality of station service devices according to an operation instruction from a management device on the network, wherein an address indicating the monitoring device on the network is given and the monitoring is performed. When the main power of the device is on,
First communication means for controlling communication with the network, and the same address as the first communication means are assigned, and communication control with the network is performed when the main power supply of the monitoring device is off. The second communication means and the first communication means disconnect the first communication means from the network when receiving a telegram command for turning off the main power source of the monitoring device from the management device, and disconnecting the first communication means from the network. The first control means for connecting the second communication means to the network, and the second communication means for receiving the telegram command for turning on the main power source of the monitoring apparatus from the management apparatus, A second control means for disconnecting the second communication means from the network and connecting the first communication means to the network. 6. A monitoring device for monitoring and controlling the operating states of a plurality of station service devices according to an operation instruction from a management device on the network, wherein an address indicating the monitoring device on the network is given and the monitoring is performed. When the main power of the device is on,
The first communication means for controlling communication with the network, the second communication means for controlling communication with the network when the main power source of the network device is in an off state, and the first communication means. A first communication means disconnects the first communication means from the network and connects the second communication means to the network when a message command to turn off the main power supply of the monitoring device is received from the management device. The control unit and the second communication unit disconnect the second communication unit from the network when receiving a telegram command for turning on the main power of the monitoring device from the management device, and disconnect the second communication unit from the network. Second control means for connecting the communication means to the network, and the first communication means when the second communication means is newly installed in the monitoring device And a setting unit that assigns the same address as the registered address to the second communication unit.