JPH0414395A - Remote control system - Google Patents

Abstract

PURPOSE:To relieve the load of a master station by storing a common basic control instruction and a modification instruction specified more in detail for each unattended slave station with respect to the basic control instruction to a memory of each unattended slave station and designating a memory address from the master station. CONSTITUTION:A control signal set from a master station 1 designates an address to a basic control instruction in common to an unattended slave station stored in a memory 3 in the unattended slave station 2. The basic control instruction whose address is designated is converted into an instruction corresponding to a controlled device in the slave station 2 by a decoder 4. Moreover, a modification instruction is outputted to each unattended slave station corresponding to the basic control instruction and converted into an instruction corresponding to the slave station 2 by the decoder 5. A control output section 6 generates a control output of the controlled device in a form that the basic control instruction is modified by the modification instruction. Thus, the designated base control instruction is modified separately at the slave station 2 to control the controlled device thereby relieving the load of the master station.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a remote control system called a remote monitoring and control device, telemeter, teleconverter, etc. that controls various equipment (controlled equipment) in a plurality of unmanned slave stations located far from a manned master station. In order to reduce the burden on the master station due to differences in detailed control content between unmanned slave stations, each unmanned slave station is stored at an address specified by a control signal from the master station. A memory that stores basic control commands common to each unmanned slave station and modification commands that are defined in more detail for each unmanned slave station to the basic control commands, and a memory that stores basic control commands specified by the address to the controlled device. A first decoder converts a modified instruction corresponding to the basic control instruction into an instruction corresponding to the unmanned slave station, and a second decoder converts the modified instruction corresponding to the basic control instruction into an instruction corresponding to the unmanned slave station. and a control output unit that generates a control output of the controlled device in a modified form using the modified command.

[Industrial application field]

The present invention relates to a remote control system, and in particular to various equipment (controlled equipment) in a plurality of unmanned slave stations far from a manned master station.
This relates to remote control systems called remote monitoring and control devices, telemeters, teleconverters, etc.

As remote control systems have become more complex in recent years, fine-grained support for control content is required.

For example, during control, the duration of the signal given to the controlled device may be instantaneous (several + ms - several hundred ms"lj7 seconds), while others must be continuous, or may be passed through contacts.
Since some devices require voltage transfer, these detailed requirements must be met for each unmanned slave station.

[Traditional technique j nete]

Conventionally, control commands have been transferred from a master station to a remote unmanned slave station by transmitting the control command code itself to control the corresponding controlled device in the unmanned slave station.

In this case, each control command code is common to each unmanned slave station, so for one control command code, the same control can be applied to other unmanned slave stations. It is the content.

[Problem to be Solved by the Invention] However, in order to give n types of control commands that are even slightly different to each unmanned slave station, the number of control command codes equal to "the number of unmanned slave stations x n" is required. As the number of unmanned slave stations increases, the number of control commands increases.

For this reason, the data transfer device of the master station must recognize all the differences in the control contents between each unmanned slave station, which is a heavy burden, so in reality, it is necessary to give up on such fine-grained control. There was a problem that it had to be done.

Therefore, in a remote control method for controlling controlled devices in a plurality of unmanned slave stations located far from a master station, the present invention reduces the burden on the master station side with respect to differences in detailed control content between unmanned slave stations. The purpose is to

[Means to solve the problem]

The first part shows the principle of a remote control system according to the present invention to achieve the above object. A memory 3 that stores basic control commands common to each unmanned slave station stored at the address to be stored, and modification commands further defined in detail for each unmanned slave station 2 in response to the basic control command; a first decoder 4 that converts a basic control command designated by It includes a decoder 5 and a control output unit 6 that generates a control output for the controlled device in a form in which the basic control command is modified with the modified command based on the outputs of both the decoders 4 and 5.

Further, in the present invention, the memory 3 may be an EEPROM that allows the modification command to be set in each unmanned slave station 2.

Further, the control output section 6 includes a drive circuit that drives each controlled device using the output of the first decoder 4, and a timer that sets the duration of the drive circuit using the output of the second decoder 5. Can be configured.

[For production]

In FIG. 1, a control signal sent from a master station 1 specifies a basic control command common to unmanned slave stations stored in a memory 3 in an unmanned slave station 2. In FIG.

The basic control command addressed by this control signal is sent to the first decoder 4 and converted into a command corresponding to the controlled equipment in the unmanned slave station 2.

Furthermore, when a basic control command is addressed in the memory 3, a modification command that is more precisely defined for each unmanned slave station is also output corresponding to this basic control command and sent to the second decoder 5, It is converted into a command corresponding to slave station 2.

The control output unit 6 that receives the commands from the first and second decoders 4.5 generates a control output for the controlled device in a form in which the basic control command is modified by a modification command.

In this way, the master station 1 only needs to specify common basic control commands to each unmanned slave station 2, and then the unmanned slave stations 2 individually modify these designated basic control commands in detail. can control the controlled device.

Further, in the present invention, an EEP-ROM can be used as the memory 3, and in this case, a unique modification command can be set for each unmanned slave station 2.

Furthermore, in the present invention, the control output unit 6
Each controlled device is driven via a drive circuit by the output of Can be modified for each unmanned slave station.

[Embodiment] FIG. 2 shows an embodiment of the unmanned slave station 2 used in the remote control system according to the present invention shown in FIG. Assuming that the number of controlled devices is 64, the number of basic control instructions stored in the memory 3 using EEP-ROM is also 64, and the address required for the memory 3 is 64. The number of binary pinpoints required to designate address 64 is 6 bits, and the memory 3 is further provided with four types of 2-bit modification instructions for modifying each basic control command. Therefore, the total number of output nodes of the memory 3 is 8 bits as shown in the figure. Incidentally, the greater the number of modifications (the number of variations) to be modified for each unmanned slave station, the more the number of bits of the modification command should be increased accordingly.

For this memory 3, there is a demodulator 11 that demodulates the control signal (address signal) from the master station 1, a register 12 that temporarily stores the output of this demodulator 11, and an address signal output from the register 12. An address switching section 15 is provided which switches between an address signal for a modification instruction from the modification instruction write control section 13 and an address signal for a modification instruction via a control line 14 .

Furthermore, the control output section 6 includes AND gates 61 . ~
6164 and connected to each output of these AND gates to each controlled ? ut! Output unit 71 that outputs a drive signal to one device
The drive circuits 62 to 6264 including ~7.4 and the decoder 5
Setters 64 to 66 each receive the output of three of the four decode outputs from the four decode outputs to set the duration L1-t3 for the timer 63, and the setters 64 to 66 receive the output of another decode output. The setting device 67 generates an output for launching the drive circuits 621 to 6264. The timing control section 10 takes the timing of the register 12, the modification instruction write control section 13, the address switching section 15, the memory 3, and the decoder 4.5, and also provides the trigger timing of the timer 63 and the setter 67. be. Further, the timer may be of the CR type or may be a combination of a clock oscillator and a not register.

Next, the operation of the above embodiment will be explained.

First, basic control commands to be stored in the memory 3 are preset in common to each unmanned slave station 2, but modified commands can be set in each unmanned slave station, and as shown in FIG. The address switching section 15 is switched to the modification instruction writing control section 13 side by the line 14, and the modification instruction is written into the memory 3 according to the address from the control section 13. After this,
Now that the address switching unit 15 has been switched to the register 12 side, as shown in FIG. In the slave station, an address for specifying a basic control command is given to the memory 3 via the register 12→address switching unit 15.

As a result, the basic control instruction corresponding to that address is read from the memory 3 and given to the decoder 4 as 6-bit parallel data, and the 2-bit modification bit corresponding to this basic control instruction is also read out. decoder 5
given to.

Among these, the basic control command is controlled by the decoder 4.
It is specified which of the L units 71 to 7□ should be driven, and one input of the corresponding AND gate becomes H level, and the modification command is sent by the decoder 5 to the setters 64 to 6.
7 becomes H level and energizes the setting device.

In this state, as shown in FIG.
0 triggers the timer 63 and the setter 67, the timer 63 starts the other timer operation according to the contents of the setter, and the AND gate specified by the decoder 4 outputs an H level for the timer period. So,
The drive circuit becomes active for the timer time and outputs the corresponding controlled device to the output section 7. ~7, 4 will drive for the timer time.

When the setting device 67 is selected, the operation is different from the above operation. That is, as shown in FIG. 5, the drive circuit selected by the output of the decoder 4 performs a latch operation by the output of the setter 67. When the drive circuit is latched, the controlled device is continuously driven until the next control command arrives. Then, when the setter 67 is selected again by the next command, the latch operation of the drive circuit is released and the controlled device returns to the non-drive state.

〔Effect of the invention〕

As described above, according to the remote control method according to the present invention, basic control commands common to each unmanned slave station and modification commands that are further defined in detail for each unmanned slave station to the basic control command are stored in the memory. By storing the basic control command in the memory and addressing the basic control command in the memory from the master station, the basic control command officer modification command is read out from the memory, and the control target equipment in the unmanned slave station is controlled by the combination of these commands. Therefore, detailed control contents that differ for each unmanned slave station can be processed on the unmanned slave station side, and the burden on the master station can be significantly reduced, and detailed remote control services can be realized.

[Brief explanation of drawings]

1 is a block diagram conceptually showing the configuration of a remote control system according to the present invention; FIG. 2 is a diagram showing an embodiment of an unmanned slave station using a remote control system according to the present invention; The figure is a frame form diagram of a control signal from a master station to an unmanned slave station used in the remote control system according to the present invention, FIG. 4 is a time chart diagram of the operation in an embodiment of the present invention, and FIG. FIG. 6 is a time chart diagram of another operation in the embodiment of the present invention. In FIG. 1, l...master station, 2...unmanned slave station, 3...memory, 4...first decoder, 5...second decoder, 6...control output Department. In V, the same reference numerals indicate the same or equivalent parts.

Claims (3)

[Claims] (1) In a remote control method that controls controlled devices in multiple unmanned slave stations far from the master station, each unmanned slave station (2
) is a basic control command common to each unmanned slave station stored at the address specified by the control signal from the master station (1), and further instructions for each unmanned slave station (2) for the basic control command. a memory (3) that stores detailed modification instructions; a first decoder (4) that converts the basic control instruction specified by the address into an instruction compatible with the controlled device; The unmanned slave station (2
), and the output of both decoders (4) and (5) generates the control output of the controlled device in the form of the basic control command modified with the modified command. A remote control system characterized by comprising: a control output section (6) for controlling; (2) The remote control system according to claim 1, wherein the memory (3) is an EEP-ROM that allows the modification command to be set in each unmanned slave station (2). (3) The control output section (6) is connected to the first decoder (4).
2. The decoder according to claim 1, further comprising: a drive circuit that drives each controlled device using the output of the second decoder (5); and a timer that sets the duration of the drive circuit using the output of the second decoder (5). The remote control method described.