JPH036542B2 - - Google Patents

Description

[Detailed Description of the Invention] <<Field of the Invention>> The present invention relates to a remote control system that controls on/off the main power of a main unit from a remote device.
In particular, the present invention relates to a device that allows a remote device to determine the appropriate timing of issuing a power on/off command signal.

<<Background of the Invention>> As is well known, an ATM system in a bank consists of a main unit of an automatic deposit machine or automatic teller machine installed at the store entrance, etc., and a remote terminal installed inside the store that is operated by a bank staff. The main power supply of the main device can be controlled on/off from the remote device side using a remote control system.

By the way, the main control section of this type of main unit is mainly composed of a microcomputer, and when the main power is turned on, a predetermined initial process is performed. In other words, when the main power is turned on, the IPL (Initial Program Loader) is started by the hardware, the main program is transferred from the external storage device to the main storage device, and the main program is not started until the main program transfer is completed. The device is now ready to serve customers. As is well known, the time required for the above-mentioned initial processing varies depending on the type of external storage device (floppy disk or cassette), and may take several minutes in some cases.

Conventionally, in such cases, bank staff would not be able to know the status of the main unit, so they would often misjudge that the main power had not been turned on and operate the switch again. is a command signal to turn off the main power. If there is an abnormality in the main unit, the second switch operation described above is correct; however, if the main unit is normal, the second switch operation will cause the main unit to restart in the middle of startup, that is, to transfer the main program. It ends up being turned off midway through, which is very inconvenient. This is because after the main program has been completely transferred, turning off the main power can be easily handled by software, but it is difficult to deal with turning off the main power while the main program is being transferred. Therefore,
Switch operation in this case should be prohibited.

《Objective of the Invention》 The purpose of this invention is to prevent the main unit from starting up on the remote device side (while the main program is being transferred).
By making it possible to determine what is in the
If the main unit is normal, the main power will not be turned off by mistake during startup, and if the main unit is abnormal, it will be possible to turn it off within a short time after turning on the main power. The objective is to provide a remote control system with

<Structure and Effects of the Invention> In order to achieve the above object, the main device has a transmission means for transmitting a device status signal after the main power is turned on to a remote device, and the remote device receives a power-on command. a timer means for counting a predetermined period of time after issuing a signal; a determining means for determining whether or not the device status signal has been supplied from the main device; The present invention is characterized by comprising a prohibiting means for prohibiting the generation of the power on/off command signal until the status signal is supplied.

According to this invention, the prohibition means prohibits the generation of the power on/off command signal within a certain period of time related to the timer means or until the device status signal related to the determination means is supplied. Therefore, when the main body device is normal, the main power source will not be turned off by mistake even if it takes a long time to transfer the main program from the external storage device to the main storage device.

Further, if there is an abnormality in the main unit, the inhibiting operation of the inhibiting means is canceled after the elapse of the above-mentioned time period, so that the main power of the main unit can be turned off within a short time after the main power is turned on. At this time, since it is possible to easily take measures such as display on the remote device side while the above-mentioned time has elapsed, this has the excellent effect of being able to reliably deal with the above-mentioned two conflicting states.

<<Description of Embodiments>> FIG. 1 is a block diagram mainly showing a remote control system according to the present invention. In the figure, the main device 1 and the remote device 2 are connected by an uplink 3 and a downlink 4 transmission line, and the uplink 3 is a transmission line that sends data such as power on/off command signals from the remote device 2. The down line 4 is a transmission line for polling and transmitting data such as device status signals from the main device 1.

The main unit 1 has an auxiliary power supply 6 that is directly connected to the power supply 5, a power supply control unit 7 that is constantly supplied with power from the auxiliary power supply 6, and a power supply from the power supply 5 that is turned on and off by opening and closing contacts 8. main power supply 9
and a main control section 10 to which power is supplied from the main power source 9.

The main control unit 10 is mainly composed of a microcomputer, and includes a central processing unit (CPU) 11,
A ROM 12 in which IPL is stored, a RAM 13 which is a main storage device, a floppy disk 14 which is an external storage device, a timer 15 which performs time control such as determining a polling cycle, and an output to which an output device (not shown) is connected. A port 16, a serial-to-parallel converter (P←→S) 17 that converts a bit-serial signal from the remote device 2 into bit-parallel signals and performs the opposite operation, and a driver that sends the bit-serial signals to the down line 4. 18
have.

The power supply control unit 7 includes a receiver 19 to which the uplink line 3 is connected, a determination circuit 20 that extracts a power on/off command signal from an input signal, and a forward/reverse circuit that performs forward/reverse operations every time the number of power on/off command signals is counted. It is composed of a counter 21 that outputs an inverted signal, and a driver 22 that turns on and off the drive current flowing through the coil of the relay 23 in response to the output of the counter 21, and opens and closes the contact 8 of the relay 23. .

Like the main device 1, the remote device 2 is mainly composed of a microcomputer, and includes a CPU 24,
ROM 25, RAM 26, an input port 28 into which various commands such as power on/off commands are input from a switch (SW) 27 operated by a staff member, and a timer 29.
, an output port 30 that outputs a power on/off command signal and a status signal of the main unit, and a status lamp 31 that displays the status of the main unit 1 in three ways: on, off, and blinking based on the status signal. , a serial/parallel converter (P←→S), and a transmission/reception switching unit 33 that switches between transmission and reception.

Next, FIGS. 2 to 4 are flowcharts mainly showing the parts related to the present invention among the operations of the main device 1 and the remote device 2 configured as described above.
This will be explained below with reference to the same figure.

Fig. 2 is a flowchart showing the operation of issuing a power on/off command signal in response to a switch operation in the remote device 2, and Fig. 3 shows the operation when the main unit 1 receives a power on/off command signal. In the flowchart, Figure 4 also shows remote device 2.
12 is a flowchart showing the operation when a response from the main device 1 is received in FIG.

In FIG. 2, the switch 27 is provided with an alternate switch that issues a power on/off command, and when this alternate switch is operated once to turn on the main power supply 9 of the main unit 1, the initial state is Since the response flag F has not been set (step 210) and the timer TM1 is in the time-up state (step 220), a power on/off command signal is issued in step 230, and the status lamp 31 is blinked (step 220).
240), displays that the main unit 1 is in the middle of startup. Next, in step 250, the timer TM1 is set, and after issuing a power on/off command signal, the main unit 1 reads the RAM from the floppy disk 14.
13, a certain period of time corresponding to the time required for the main program to be transferred (steps 310 to 340 in FIG. 3) is counted.

Next, in the main device 1, the power supply control unit 7, which is in an operating state by the auxiliary power supply 6, receives a power on/off command signal. That is, a drive current is supplied to the coil of the relay 23, the relay contact 8 is closed, and the main power source 9 is turned on. As a result, the main control unit 1
0 is activated and the operation shown in FIG. 3 is performed.
First, each part is set to its initial state by hardware (step 310), IPL is started (step 320), and the main program is transferred from the floppy disk 14 to the RAM 13 (step 330). When this loading is completed and the software can start the program (step 340),
This is transmitted to the remote device 2 (step 350) to notify that the main device 1 has started up normally in response to the on/off command signal from the remote device 2. Thereafter, communication is performed between the main device 1 and the remote device 2 in a polling format (steps 350 and 360).

Next, when the remote device 2 receives the response from the main device 1, it operates as shown in FIG. That is, in the first step 10, the response reception flag F is set, the status lamp 31 is turned on to indicate that the main unit 1 is ready for transmission and reception (step 420), and a timer for monitoring the polling interval is set.
Set TM2 (step 430). Therefore,
The timer TM2 has a time-up time width slightly larger than the polling interval.
Therefore, when the timer TM2 times up (step 440), it means that the transmission and reception between the main device 1 and the remote device 2 has been carried out appropriately, and the main power supply 9 has been turned off on the main device 1 side. , the response reception flag F is reset in step 450, and the status lamp 31 is turned off in step 460.
Displays the status of the main device 1.

Then, appropriate communication is performed between the main device 1 and the remote device 2, and when the main device 1 is to be turned off on the remote device 2 side, it is done as follows. Second
In the figure, when the alternate switch of the switch 27 is operated (the second switch operation), the response reception flag F is set in step 210, so the process proceeds to step 260, where a power on/off command signal is generated, and then a response reception is performed. The flag F is reset (step 270), and the status lamp 31 is turned off (step 280). The above is an outline of the on/off control of the main power supply 9 by normal switch operation.

Next, a case where a switch is operated incorrectly or an abnormal case where no polling is transmitted from the main device 1 even if an on/off command signal is issued from the remote device 2 will be described. First, step 310 above
If the second switch operation is performed within the time of step 340, the response reception flag F is not set in step 210 in FIG. 2, so the process advances to step 220. However, the timer
Since TM1 has not yet timed out, the routine after step 230 is not executed, and therefore no power on/off command signal is issued. Further, if there is no polling transmission from the main unit 1 after issuing the on/off command signal, the process advances from step 210 to step 220. At this time, timer TM1
has timed up, the routine from step 230 onwards is executed, a power on/off command signal is issued, the main power supply 9 of the main unit 1 is turned off,
Thereafter, appropriate abnormality processing is performed. This main device 1
An abnormality can be detected by the blinking time of the status lamp 31 being too long.

Note that the response reception flag F is stored in the RAM 26.
The timers TM1 and TM2 are provided in the upper timer 29.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram mainly showing the remote control system according to the present invention, FIG. 2 is a flowchart mainly showing the part of the transmitting operation of the remote device according to the present invention, and FIG. 3 is the operation of the main device. A flowchart mainly showing the parts related to this invention,
FIG. 4 is a flowchart mainly showing the part of the receiving operation of the remote device according to the present invention. 1... Main device, 2... Remote device, 3, 4
......Transmission line, 6...Auxiliary power supply, 7......Power control unit, 9...Main power supply, 10......Main control unit,
24……CPU, 25……ROM, 26……
...RAM, 27...Switch (SW), 29...
...Timer (TM1, TM2), 31...Status lamp, F...Response reception flag.

Claims (1)

[Claims] 1. In a remote control system consisting of a remote device and a main device, in which the main power of the main device is controlled on and off in response to a power on/off command signal from the remote device; The device has a transmission means for transmitting a device status signal after the main power is turned on to the remote device; determining means for determining whether or not the device status signal has been supplied, and the timer device not issuing the power on/off command signal until the specified time has been counted or the device status signal has been supplied. 1. A remote control system comprising: prohibition means for prohibiting the remote control system from being