JPS5916443A - System for controlling application of power supply in network system - Google Patents

Abstract

PURPOSE:To control the application of a power supply of a main body of a slave station at random from a master station to each slave station, by providing an interface connecting section which receives a message from the master station for processing discrimination, even at the cutoff of the power supply of the slave station. CONSTITUTION:The interface connecting section 11 receives a message transmitted at all times from the master station with an auxiliary power supply (c) even if the power supply of the main body controlling section 12 is interrupted. When the power supply application message transmitted from the master station is received at a control circuit (b), the main body power supply (f) is turned on and the power supply is supplied to a main body control circuit (h). The circuit (h) is operative and an operation preparating end signal (g) is outputted to the circuit (b). Thus, the interface control with the master station is brought from the control of the circuit (b) into the control of the circuit (h), allowing to attain the normal operating communication.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an interface control function between a main control device and a slave control device in a network system using a serial interface method, and particularly to power-on control on the slave control device side.

To explain the power-on control method between the main control device and the slave control device of a conventional network system using diagrams, Fig. 1 (5) is a configuration diagram showing an example of a network system using a specific communication line. Between the device 1 (hereinafter abbreviated as master station) and the plurality of slave control devices 5 (hereinafter abbreviated as slave stations), earth floor modem #2 slave side AC branching device 3 is connected via communication line 10. pl Furthermore, each slave station 5 and the AC branching device 3 have p1
Communication lines are branched. In addition, between main station 1 and slave station 5 and f demodulator [2 and 4 is J l5-C-636
1 R8-2320 interface.

In the power-on control according to this configuration connection example, when the main station 1 starts up 9 and becomes ready for communication, the R8 signal of the modem 2 is
By turning ON, a carrier signal is output to each modulation/demodulation device 4 on the p11 side. When this carrier signal is detected by each modulation/demodulation device 4, each modulation/demodulation device [4 outputs a CD signal 8 ((0) in FIG. 1) to each slave station 51C. turns on its own power.

Signal 9 (FIG. 1 (B)) indicates the power-on state of slave station 4. As is clear from the above explanation, according to the conventional method, the power supply of each slave station 5 is switched on by CD signal 8. It is possible to insert balls, but randomly from the ball amount l.
l [The drawback was that it was not possible to control the power input.

In addition, regardless of the connection configuration of the prisoner in Figure 1, as shown in Figure 2, the communication between the main station 1 and each slave station 5 is made one-to-one without using the AC branch 3. If the line 10 and two modems are provided, power-on control equivalent to that described above can be realized, but as the number of slave stations 5 increases compared to the configuration shown in FIG. At the same time as the equipment for transformation #2 becomes necessary, the number of communication lines 10 increases, so the main station l
However, there are drawbacks such as an increase in the control load and poor cost performance.

The purpose of the present invention is to
V
C Yes According to the present invention, in a network system consisting of a master station and a plurality of slave stations, the interface means of the slave stations with the master station is capable of maintaining a data link with the master station even when the slave station itself is in an M-line disconnection state. The main station is equipped with a TR, a communication supply means, and an interface control means independent from the slave station main station so that the main station can send a power-on message to multiple slave stations, including an identification means so that they can be selected individually. By providing a control function to do this, it is possible to obtain a power-on control method for a network system, which is characterized in that the master station can control the main station power-on of each slave station in an arbitrary random manner.

Next, embodiments of the present invention will be described with reference to the drawings.
Figure 3 uses a network system with the same configuration as Figure 1 (4), and data communication between master station 1 and slave station 5 is via public company line 10. : A diagram showing the online type system configuration used. FIG. 3 CB) is a diagram showing an in-line system configuration in which data communication between the master station 1 and slave station 5 does not use a public company line, and the 4M line 13 is a serial interface in a broad sense.

Element 10 of the present invention is located in the interface connection section 11 within the slave station 5, and will be explained using FIG. 4. Follower 5
The circular interface connection section 11 is a control circuit that performs processing for determining the converted parallel rail data d and procedure processing between the SP conversion circuit a that converts serial data between the master station 1 and the slave station 5 into parallel data, and the master station l. In order to constantly supply power to both of the above circuits, an auxiliary power supply C is provided, which is independent from the slave main body'IIL source i.

This auxiliary power supply clc allows the interface connection section 11 to always receive and process messages sent from the main station 1 even when the main body control section 12 is in a power-off state.

The second element of the present invention is that the power-on message format transmitted from the master station 1 allows a plurality of slave stations 5 to communicate with the master station 1, as seen in the generally known polling/selecting method. An identification means such as a slave station number is provided for determining whether a power-on message transmitted from a station is a message for the own station.

Continuing the explanation of FIG. 4, when the control circuit receives a power-on message transmitted from the main station 1, a power-on command signal e is output to the main body power supply 5, and the main body power j is turned on.

When the main body power f is turned on, the main body control circuit hK power is supplied, the main body control circuit l becomes operational, and the signal g? indicating that the control circuit bVc of the interface connection section 11 is ready for operation is output. Specific power. As a result of the output of the signal g, the interface control with the main station 1 is no longer under the control of the interface connection section 110 control circuit, and normal operational communication becomes possible under the control of the main body control circuit. As is clear from the above explanation, the interface connection section 11 in the slave station 5 has a control function that operates at all times independent of the main body control section 12, and the t temporary entry command from the master station 1 is applied to all multiple slave stations. By equipping the master station 1 with a function that allows the master station 1 to select and make a call individually, the power of the master station 1 to the slave station 5 can be turned on arbitrarily and randomly.The net talk system allows VcW to be established more easily and at a lower cost than conventional systems. becomes.

According to the present invention, it is possible to randomly select and power on slave stations from the master station, so when combined with the power cutoff function from the master station, it is possible to remotely start and end the operation of many slave stations individually. If applied to network systems of unmanned branch systems such as those seen in recent financial institutions, it would have a great effect.

[Brief explanation of the drawing]

Figure 1 (4) is a network system configuration diagram in which multiple slave stations are connected to one public company line through an AC branching device, and Figure 1 (with) explains the general operation of turning on power from a slave station. FIG. 2 is a network system configuration diagram in which the public company line between a main station and multiple slave stations is connected one-to-one with the slave stations. FIG. 3 (4) is a network diagram in one embodiment of the present invention. An example of the system configuration is shown, and the public corporation [
T? A configuration diagram in which multiple slave F7Js are connected to one li,
3) shows another example of the network system configuration according to an embodiment of the present invention, and FIG. 4 is a schematic block diagram showing a pay-as-you-go control configuration. It is. l...Main station, 2.4...Modulation/demodulation device, 3...AC branching device, 5...Slave station, 6.7...R8-232 interface, 8...CD signal, 9 River power supply 0N10
F F status signal, 10...Public corporation line, 11...Interface connection section, 12...Slave station main body control section, 1
3...Serial interface in a broad sense, a...serial/parallel conversion circuit, b...control circuit for interface connection section, C...auxiliary power supply, d...parallel data, e...turning on Command signal, f...Main power supply,
g...Signal indicating completion of operation preparation, h...Main body control circuit. Ward Z (A) /'2 (B) Figure 3

Claims (1)

[Claims] In a network system consisting of a main controller and a plurality of slave controllers, the slave controller is provided with an interface connection section that has a power supply means and an interface control means independent from the slave controller main body, and the slave controller has multiple slave controllers. A network system is provided with a control function for issuing a select message including identification means that allows individual selection of slave stations, and the main controller can control the power on of the slave controller body in an arbitrary and random manner. Power-on control method.