JPH0728454B2 - Remote start / stop control device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote start / stop control device for centrally controlling start / stop of equipment such as a building.

2. Description of the Related Art Conventionally, this type of remote start / stop control device has a configuration as shown in FIG. In Figure 4, 41 is a central unit, the terminal unit 43 ₁ ~43n via the transmission line 42 is connected.

First, the start / stop time setting means 44 of the central unit 41
51 Set start / stop time data (start time, stop time) for _{1 to} 51n. The start / stop time confirmation means 45 performs the processing shown in the flowchart of FIG. That is, in FIG. 5, first, in step 101, the current time is confirmed (the current time is confirmed). Next, at step 102, the start / stop time data set by the start / stop time setting means 44 is compared with the current time. If start-stop time data and the current time for all devices 51 ₁ ~51n does not match returns to step 101.
If the current time and any start / stop time data match, the process proceeds to step 103, where the central device 41 sends a device start / stop command signal to the terminal device 43 ₁ to which the corresponding device 51 ₁ is connected. Is output. When the instrument onset stop command signal is output from the output unit 46, the terminal unit 43 ₁ side, captures the signal by input and output unit 49. Next, the terminal device 43 ₁ turns on the device 51 ₁ when the command is the start command and turns off the device 51 ₁ when the command is the stop command by the device start / stop means 50.

Moreover the central unit 41, in addition to the confirmation of the start-stop time mentioned above, performs a process of collecting status data of the respective devices 51 ₁ ~51n. FIG. 6 shows an operation flowchart of the data collecting means 47 and the state data processing means 48. In FIG. 6, first, in step 104, a data request signal is transmitted to the terminal device 43 ₁ . When this signal is issued from the output unit 46 of central unit 41 reads the signal from the input unit 49 in the terminal unit 43 _1. Status data input unit 53 reads the status data (ON, OFF) from the device 51 _1. Response means 52
Transmits the status data to the central unit 41 via the input / output unit 49. In step 105, the status data transmitted from the terminal unit 43 ₁ side through the input unit 46 inputs to the central unit 41. In step 106, the central unit 41 performs processing such as saving the input state data and displaying it on the display.

As described above, the central unit 41 repeatedly performs the processes shown in the flowcharts of FIGS. 5 and 6 in parallel.

Problems to be Solved by the Invention In this conventional remote start / stop control device, the central device collects status data from each terminal and processes it, and monitors the start / stop time for each terminal. The operation of sending the device start / stop command signal must be performed in parallel, and there is a problem that the processing may not be in time when the number of devices is large. Further, since a plurality of processes must be performed in parallel, the processing algorithm of the central device becomes complicated.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a remote start / stop control device in which the processing algorithm of the central device is further simplified.

It is another object of the present invention to provide a remote start / stop control device that can reduce the processing load on the central unit and can control a large number of devices.

Means for Solving the Problems To solve the above problems, a remote start / stop control device according to the present invention includes a central device and a plurality of terminals connected to the central device via a transmission line and connected to devices. It consists of vessels. The central device sends a data request signal to each of the terminals and compares the start / stop time data obtained by the data collecting means with the current time with data collection means for collecting start / stop time data from the terminals. And a start / stop time confirmation means for sending a device start / stop command signal to the corresponding terminal when the two values are close to each other. The terminal device includes start / stop time data storage means for storing preset start / stop time data, and the start / stop time data stored by the start / stop time data storage means in response to a data request signal from the central device. It has a response means for sending the time data to the central device, and a device starting and stopping means for starting and stopping the connected device when receiving the device starting and stopping command signal from the central device.

Operation With the above configuration, the central unit determines whether or not the device should be started and stopped by comparing the start and stop time data sent from the terminal with the current time, and when it is necessary to start and stop A device start / stop command signal is sent to the device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of a remote start / stop control device according to the present invention, in which 1 _{1 to 1} n are terminals, 6 _{1 to} 6 n are devices, and a data request signal is sent from a central unit 2 to a transmission line 3. When, the data request signal is inputted to the output unit 4 of the terminal device 1 ₁ 1n. After this is input, the status data input means 5
Status data is input from 6 ₁ . To the response means,
The start / stop time data storage means 8 inputs the start / stop time data and the state data input means 5 inputs the state data, and these two data are output to the input / output unit 4 and sent to the central unit 2 via the transmission line 3. To do.

The central unit 2 comprises an input / output unit 10, a data collecting means 11, a start / stop time confirmation means 12, a state data processing means 13 and a start / stop time setting means 14. FIG. 2 is a flowchart showing the operation of the central device 2.

The operation of the central unit 2 will be described below with reference to FIGS. 1 and 2. First, in step 15, the start / stop time setting means 14 outputs start / stop time data stored in advance in the storage device of the central device 2 for each device connected to each terminal 1, to the input / output unit 10 and the transmission line. 3 to the terminal device 1. Next, in step 16, the data collection means 11 sends a data request signal to the terminal device 1 via the input / output unit 10 and the transmission line 3. Immediately after the transmission, the input / output unit 10 waits for the response data from the terminal 1. Next, in step 17, the response data transmitted from the terminal device 1 is input to the input / output unit 10 of the central device 2. This input data includes the status data (on or off) of the device 6 and start / stop time data (start time, stop time).
It is included.

Steps 18 and 19 are processing by the start / stop time confirmation means 12. In step 18, the present time is compared with the start time and stop time based on the start / stop time data input from the terminal 1. Assuming that the current time is t _N , the start time is t _ON , and the stop time is t _OFF , t _N −t _ON ≦ Δt (Δt: central device 2
If it is the time required to complete the processing of steps 16 to 20 for all terminals and the status data indicates “OFF”, the process proceeds to step 19 and the central unit 2 sends the response data. A device start / stop command signal (start command) is sent to the terminal device 1 which has sent. Also, t _N −t _OFF
If ≦ Δt and the state data indicates “ON”, the process proceeds to step 19 and the central unit 2 sends the device start / stop command signal (stop command) to the terminal device 1 which has sent the response data. ) Is sent. In other cases, the process of step 19 is not performed and the process proceeds to step 20.

In step 20, the status data processing means 13 performs processing such as saving the status data sent from the terminal 1 in the recording device or displaying it on the display.

When the above process is completed, step 16
Repeat the same process as ~ 20.

FIG. 3 is a block diagram centering on the terminal 1. The operation of the terminal 1 will be described below with reference to FIG.

The data sent from the central unit 2 is input to the input / output unit 4. Microcomputer 23 has CPU, ROM, RAM2
It is a so-called one-chip microcomputer having 4. The data input from the input / output unit 4 is stored in the microcomputer 23
And the data is released. If the data is start / stop time data, the start / stop time data (start time,
The stop time) is stored in RAM23. These operations correspond to the operation of the start / stop time data storage means 8. Input / output unit 4
When the data input from the microcomputer 23 and transmitted to the microcomputer 23 is the data of the device start / stop command signal, the microcomputer 23 sends a signal for starting or stopping the device 6 via the signal output unit 22. send. These operations correspond to the operation of the device start / stop means 9. Furthermore, when the data input from the input / output unit 4 and sent to the microcomputer 23 is the data of the data request signal, the status data of the device 6 sent from the device 6 via the signal input unit 22 ( ON or OFF) to the microcomputer 23,
Further, the microcomputer 23 takes out the start / stop time data (start time, stop time) stored in the RAM 23 and outputs it to the input / output unit 4 together with the state data. This operation corresponds to the operation of the response means 7, and the microcomputer
The input / output unit 4 to which the data transmitted from 23 is input sends the data to the central unit 2.

By the operations of the central device 2 and the terminal device 1 as described above, the device 6 is started and stopped at the set time.

Further, in the present embodiment, the start / stop time data storage means 8 decides that the data set by the start / stop time setting means 14 of the central device 2 is transmitted to the terminal device 1, but A stop time setting device or the like may be installed.

EFFECTS OF THE INVENTION As described above, according to the present invention, the terminal device is provided with a function of storing the start / stop time data, and when the data request signal is transmitted from the central device, the start / stop time data is sent from the terminal device to the central device. By sending back to the central device, the central device only needs to confirm the start and stop based on the start and stop time data sent from the terminal device, so there is no need to perform parallel processing, the processing delay is reduced and the processing algorithm of the central device It has the effect of being simple.

[Brief description of drawings]

FIG. 1 is a block diagram of a remote start / stop control device according to an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of the central device of FIG. 1, and FIG. 3 is mainly the terminal device of FIG. FIG. 4 is a block diagram, FIG. 4 is a block diagram of a conventional example, FIG. 5 is a flow chart showing a start / stop confirmation means of a conventional example, and FIG. 6 is a flow chart showing a data collecting means and a state data processing means of the conventional example. 1 ... Terminal device, 2 ... Central device, 3 ... Transmission line, 6
... device, 7 ... response means, 8 ... start / stop time data storage means, 9 ... device start / stop means, 11 ... data collection means, 12 ... start / stop time confirmation means

Claims (1)

[Claims] 1. A central device and a plurality of terminals connected to the central device via a transmission line and connected to a device, wherein the central device sends a data request signal to each of the terminals. , A data collecting unit that collects start / stop time data from the terminal device, and a device for the terminal device when the start / stop time data obtained by the data collecting unit and the current time are compared and the two values are close to each other. The terminal device has a start / stop time confirmation means for transmitting a start / stop command signal, the terminal device stores start / stop time data storage means for storing preset start / stop time data, and a data request signal from the central device. On the other hand, a response means for sending the start / stop time data stored by the start / stop time data storage means to the central device, and a connection means for receiving the device start / stop command signal from the central device. The remote start-stop control device characterized by having a start-stop giving device start-stop device the device being.