JPH0721806B2 - Same time data collection method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a same time data collection method, and more particularly to a same time data collection method that collects data at the same time from a plurality of devices that continuously store data.

[Conventional technology]

As a conventional same time data collection method, the data reporting time is set in advance from the computing device to all control devices having a time management function, and at the reporting time, all control devices report the current data to the computing device. There is a method to collect data at the same time.

[Problems to be Solved by the Invention]

The conventional same-time data collection method described above is economically burdensome because all control units must have a time management function, and all control to the arithmetic unit at the time set as the reporting time. There is a problem in that the data reports from the devices are concentrated and may hinder the execution of tasks other than the data collection of the arithmetic device.

An object of the present invention is to provide two storage areas for accumulating data in a control device for continuously accumulating data so that one of the storage areas is always in an accumulable state and the arithmetic unit sends the data to a plurality of control devices. When the switching instruction control signal is received, the storage area that is currently in the storage enabled state is set to the storage disabled state while holding the stored data, and when the data report request signal sent by the arithmetic unit is received, the storage is held while the stored data is held. By sending the data in the disabled storage area to the arithmetic unit, the control unit does not need to be equipped with a time management function, preventing data reports from all control units from concentrating on the arithmetic unit at one time. It is to provide the same time data collection method that can be performed.

[Means for Solving the Problems]

According to the same time data collection method of the present invention, an arithmetic device controls a plurality of control devices that continuously store data that changes every moment so that the data is determined at the same time, and collects the determined data. In the time data collection method, the control device has two storage areas for storing the data, one of the storage areas is always in a storage enabled state, and the arithmetic device sends the plurality of control devices to the switching device. When the instruction control signal is received, the storage area that is currently in the storage-enabled state is set to the storage-disabled state while holding the stored data, and the storage area that was previously in the storage-disabled state is set to the storage-enabled state and sent out by the arithmetic unit. When the data report request signal is received, the data in the storage area in the storage disabled state while holding the stored data is sent to the arithmetic unit. By a structure for collecting data of the same time of the plurality of control devices.

The arithmetic unit sends the switching instruction control signal in a broadcast mode using a command broadcast transfer bus provided between the plurality of control units, and outputs the data at the same time from the plurality of control units. The collection may be performed using a bidirectional signal transfer bus provided between the plurality of control devices.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.

The central processing unit 1 that collects billing data and traffic information in the switching network is a command transmission bus 4 used for broadcast communication with the packet control units 2 and 3 and both used for bidirectional communication. It is connected to the signal transfer bus 5. The packet control devices 2 and 3 are connected to the packet transfer data links 6 and 7, respectively. Packet control device 2, 3
Has two storage areas A and B, respectively. One of the storage areas A and B is always in a storage enabled state, and the packet control devices 2 and 3 receive the switching instruction control signal sent from the central processing unit 1 to switch the storage areas A and B in the storage enabled state. . As a result, the central processing unit 1 can determine the data at the time of transmitting the switching instruction control signal for each of the packet control devices 2 and 3.

Next, the operation will be described.

FIG. 2 is a flow chart of an embodiment of the present invention. FIG. 2 (a) is a flow chart of the operation in the central processing unit 1.
FIG. 7B is a flow chart of the operation in the packet control devices 2 and 3. Further, FIG. 3 is a state transition diagram in which the flow of operations in the packet control devices 2 and 3 is displayed focusing on the operating states of the storage areas A and B. In the figure, the slanted lines of the storage areas A and B indicate that the applied areas are in the storage enabled state. The description will be given with reference to FIGS. 2 and 3.

In the first state, as shown in FIG. 3 (a), the storage areas A in the packet control devices 2 and 3 are in a storage possible state. This is stored in the data storage target display memories 20 and 21. There is. In this state, the packet control devices 2 and 3 detect the packet transfer information 26 and 27, respectively, and store the detected data in the storage area A. In FIG. 2B, when a packet transfer is detected in step (hereinafter referred to as S) 16, the signal is branched and the detected data is added and accumulated in the accumulation area in S19.

Next, at the data collection time, the central processing unit 1
As shown in FIG. 9A, in S10, a switching instruction control signal is sent to all packet control devices in the broadcast mode. Upon receiving the switching instruction control signal in S16, the all-packet control device that has received this switching instruction control signal branches the signal when it receives the switching instruction control signal in S16. Display memory for data accumulation to switch from B to B
Rewrite the memory contents of 20,21. Next, the storage area A that is currently in the storage enabled state is set to the storage disabled state while holding the stored data, and the storage area B that was in the storage disabled state until now is set to the storage enabled state. As shown in (b), the switching instruction control signal 28 is received in the broadcast mode. The state further progresses, and as shown in FIG. 3C, the packet control devices 2 and 3 detect the packet transfer information 29 and 30, respectively, and store the detected data in the storage area B.

Next, the central processing unit 1 determines the head packet control device 2 that collects data in S11 of FIG. 2 (a), and in S12 sends a data report request signal requesting data transmission to the packet control device 2. Send out. In the packet control device 2, as shown in FIG. 2 (b), when the data report request signal is detected in S16, the signal is branched, and in S18, the accumulated data is stored in the state in which the previously accumulated data is retained and the accumulation is disabled. The data in the area A is sent to the central processing unit 1. This state is the third
The packet control device 2 shown in FIG. 3D, which has received the data report request signal 31, sends out the data 32 in the storage area A. The central processing unit 1 receives and collects the data 32 from the packet control device 2 in S13 of FIG. 2 (a). Then S1
In step 4, check whether data collection from all packet control devices is complete. If data collection has not been completed yet, the packet control device for the next data collection is determined in S15, the process jumps to S12 again, and a data report requesting the data transmission to the packet control device for the next data collection. Send a request signal. This state is shown in FIG. 3 (e),
Packet control device 3 that has received the data report request signal 33
Sends the data 34 in the storage area A. The central processing unit 1 receives and collects the data 34 from the packet control device 3 in S13 of FIG. 2 (a). Next, in S14, it is confirmed whether or not data collection is completed from all the packet control devices. If the data collection is completed, the data collection at this time is ended.

Until the next data collection time, the packet control device 2,3
Stores the detected data in the storage area B.

After that, the same operation is repeated each time the data collection time comes.

〔The invention's effect〕

As described above, according to the present invention, a control device that continuously stores data is provided with two storage areas for storing data, and one of the storage areas is always in a storage-enabled state. When the switching instruction control signal sent to the device is received, the storage area that is currently ready to be stored is set to the storage disabled state while holding the stored data, and when the data report request signal sent by the arithmetic unit is received, the stored data is stored. By sending the data in the storage area that cannot be stored as it is stored to the arithmetic unit, the control unit does not need to have a time management function, and data reports from all control units are concentrated in the arithmetic unit at one time. There is an effect that can be prevented.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, FIG. 2 is a flow chart of one embodiment of the present invention, FIG. 2 (a) is a flow chart of operation in the central processing unit 1, and FIG. ) Is the packet controller
FIG. 3 is a state transition diagram showing the flow of operations in the packet control devices 2 and 3 by focusing on the operation states of the storage areas A and B. 1 ... Central processing unit, 2,3 ... Packet control device, 4 ...
… Command broadcast transfer bus, 5 …… Bidirectional signal transfer bus, 6,7 …… Packet transfer data link, 20,21 …… Data storage target display memory, 26,27,29,30 …… Packet Transfer information, 28 …… Switching control signal, 31,33 …… Data report request signal, 32,34 …… Data, A, B …… Storage area.

Claims (2)

[Claims] 1. A same-time data collection method in which an arithmetic unit controls a plurality of control devices that continuously store data that changes every moment so that the data is fixed at the same time and collects the fixed data. , The control device has two storage areas for storing the data, one of the storage areas is always in a storage enable state, and the switching instruction control signal sent from the arithmetic device to the plurality of control devices is received. Then, the storage area that is currently in the storage-enabled state is set to the storage-disabled state while holding the stored data, and the storage area that was previously in the storage-disabled state is set to the storage-enabled state, and the data report request signal sent by the arithmetic unit is sent. Upon reception, the plurality of controls are performed by sending the data in the storage area in the storage area in the storage disabled state while holding the stored data. Same time data collection method, which comprises collecting the data of the same time the location. 2. The arithmetic unit sends the switching instruction control signal in a broadcast mode by using a command broadcast transfer bus provided between the plurality of control units, and outputs from the plurality of control units. 2. The same time data collecting method according to claim 1, wherein the data at the same time is collected by using a bidirectional signal transfer bus provided between the plurality of control devices.