JP6125355B2 - MONITORING SYSTEM, POWER MONITORING DEVICE USED FOR THE SAME, AND ITS INDIVIDUAL ADDRESS SETTING METHOD - Google Patents

Description

  The present invention relates to a monitoring system that collects data in each power monitoring device and manages and operates the data in the host device through communication between the host device and the power monitoring device.

  Conventionally, in a monitoring system in which data of a power monitoring device is managed and operated by a host device through communication between the host device and the power monitoring device, the host device cannot collect data unless an individual address is set. Therefore, there are a method of setting an individual address by an individual address setting switch mounted on each power monitoring device, and a method described in Patent Document 1 (Japanese Patent Laid-Open No. 2012-175413). Japanese Patent Application Laid-Open No. 2004-151561 describes that an individual address is automatically set from a higher-level device in the case of serial communication multi-drop connection.

JP 2012-175413 A

  As a method of setting an individual address for each power monitoring device, there is a method of setting an address by a switch for setting an individual address installed in each power monitoring device, but it takes time for setting. Further, in Patent Document 1, in the case of serial communication multi-drop connection, an individual address is automatically set from a host device and does not support a 1-to-N communication method such as LAN communication. Further, even in a system in which a multi-drop communication system in serial communication and a 1-to-N communication system are mixed, it is not considered to set an individual address automatically.

  In order to solve the above-described problems, the present invention provides a monitoring system that communicates between a host device and a power monitoring device using a method in which a multi-drop communication method and a one-to-N communication method are mixed. Check the presence or absence of setting, and set the individual address for the power monitoring device for which the individual address is not set.

  According to the present invention, an individual address can be automatically set even in a system in which a multi-drop communication method and a one-to-N communication method are mixed, and address setting can be facilitated.

1 is an overall configuration diagram of a monitoring system according to an embodiment of the present invention. The flowchart of operation | movement of the monitoring system of an Example is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. An embodiment of the present invention will be described with reference to FIG. FIG. 1 shows a configuration of a monitoring system including a power monitoring device directly connected to a host device via a LAN and a power monitoring device connected via a LAN converter.

  In FIG. 1, 101 is a host device, 102 is a LAN converter that converts LAN communication and serial communication, 103 is a power monitoring device A, 104 is a power monitoring device B, 105 is a power monitoring device C, and 106 is a power monitoring device D. , 110 is a LAN network, 111, 112, 113, 114 are LAN communication lines, and 115 is a serial communication line.

The host device 101 manages and operates the power monitoring devices 103, 104, 105, and 106, and generally uses a general-purpose personal computer (PC).
The power monitoring devices 103 and 104 perform communication by a multi-drop communication method of LAN communication on the upper side and serial communication on the lower side via a LAN converter 102 that converts LAN communication and serial communication. The power monitoring devices 105 and 106 communicate by a 1-to-N communication method via a LAN network.

  Each power monitoring device is connected to a current sensor, voltage sensor, power sensor, temperature sensor, humidity sensor, etc., and measures the current, voltage, power, electric energy, temperature, humidity, etc. in the building or production line, and the data Is transmitted via the communication line.

  The host device 101 identifies each power monitoring device, sets an individual address to the power monitoring device for communication, and associates the individual address with the power monitoring device in the host device. That is, a correspondence list between corresponding devices and individual addresses is created and managed.

  Next, the individual address automatic setting operation of the monitoring system shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a flowchart showing the individual address automatic setting operation.

  In the flowchart of FIG. 2, the power monitoring device directly connected via the LAN and the power monitoring device connected via the LAN converter on the host device side are distinguished by the MAC address range.

  First, in step 201, the upper apparatus transmits a confirmation request command for whether there is a unit for which an individual address is not set, to the power monitoring devices 105 and 106 directly connected to the upper apparatus via a LAN. Next, in step 202, the power monitoring device with the individual address not set adds its own MAC address and transmits a reply command with the individual address not set.

In step 203, it is determined whether there is a power monitoring device directly connected to the LAN with no individual address set. When a reply command arrives at the host device, there is a power monitoring device directly connected to the LAN with no individual address set. And proceed to the next step 204. In step 204, the host device assigns an individual IP address and an individual address to the power monitoring device having the MAC address of the reply command, and transmits a setting request command for setting the power monitoring device. This series of operations is repeated until there is no power monitoring device directly connected to the LAN with no individual address set.

  Next, in step 205, a confirmation request command for whether there is a unit for which an individual address has not been set is transmitted to the power monitoring devices 103 and 104 connected to the host device via the LAN converter. In step 206, if the address is not set, the confirmation request command reaches only the power monitoring device 103 close to the LAN converter, and a reply command with no individual address set is transmitted from the power monitoring device 103.

  In step 207, it is determined whether there is a power monitoring device connected using a LAN converter for which an individual address has not been set. If it is determined that there is a power monitoring device, the process proceeds to the next step 208. In step 208, the higher-level device assigns an individual address to this power monitoring device and transmits a setting request command to perform setting for the power monitoring device.

  When an individual address is set in the power monitoring device 103 in this series of steps, the individual address setting switch is turned on, so that the request command reaches the power monitoring device 104 serially connected to the power monitoring device 103. Next, an individual address is assigned to the power monitoring device 104 close to the LAN converter in the same procedure, and the process is repeated until there is no power monitoring device connected via the LAN converter for which the individual address is not set.

  As described above, according to this embodiment, an individual address can be automatically set even in a system in which a multi-drop communication method and a one-to-N communication method are mixed, and the setting can be facilitated. . In addition, it is not necessary to make a setting using a dip switch or the like when the power monitoring device is in an operating state, and the setting can be performed without touching the operating power monitoring device, thereby improving safety.

  Also, by managing the address list on the host device side at the same time as the automatic individual address setting, it is possible to simplify the settings on the host device side and prevent communication failures that occur when the same address is set due to a human error.

  Furthermore, since it is not necessary to mount the individual address setting switch in the power monitoring device, the product can be downsized.

  Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, in the processing flow of FIG. 2, confirmation of whether an address has not been set and individual address setting are first performed for the power monitoring devices 105 and 106 directly connected via a LAN, and then connected via a LAN converter. The power monitoring devices 103 and 104 that have been connected to the power monitoring device are reversed. First, the power monitoring devices that are connected via the LAN converter are performed first, and then the power monitoring devices that are directly connected via the LAN. The same effect can be obtained.

101 ... Host device 102 ... LAN converters 103-106 ... Power monitoring devices A-D
110: LAN network 111-114 ... LAN communication line 115 ... Serial communication line

Claims (4)

A monitoring system comprising a host device and a plurality of power monitoring devices, and communicating between the host device and the power monitoring device in a mixed multi-drop communication method and a one-to-N communication method,
Said host device, to confirm the presence or absence of address unconfigured connected power monitoring device on the 1-to-N communication scheme, to set individual IP addresses and the individual address in the power monitoring apparatus of the address unset,
Check whether the power monitoring device connected by the multi-drop communication method has not been addressed, and set an individual address for the power monitoring device for which the address has not been set. A monitoring system characterized by setting an address . The monitoring system according to claim 1,
The one-to-N communication method is a communication method via a LAN network.
The multi-drop communication system is executed on serial communication converted by a LAN converter connected to the LAN network . The monitoring system according to claim 1 or 2 ,
The host system creates and manages a correspondence list between the set individual address and a corresponding power monitoring device . An individual address setting method for a power monitoring device in a monitoring system that communicates between a host device and a plurality of power monitoring devices in a method in which a multi-drop communication method and a one-to-N communication method are mixed,
Transmitting a confirmation request command with no individual address set to a power monitoring device connected by the one-to-N communication method;
A step of transmitting an individual IP address and a setting request command for an individual address to the received power monitoring device for which an address is not set when a reply command for which an individual address is not set is received from the power monitoring device connected by the one-to-N communication method When,
Transmitting a confirmation request command with no individual address set to a power monitoring device connected by the multi-drop communication method;
When receiving a reply command with no individual address set from a power monitoring device connected by the multi-drop communication method, a step of sending a request request for setting an individual address to the received power monitoring device with an unset address;
An individual address setting method for a power monitoring device.

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