JPS5846790A - Time division transmission system of carrier system - Google Patents

Abstract

PURPOSE:To control loads continuously for parts following an abnormal part, by storing the control state up to now even if the fault of a main operation panel and abnormalities such as short-circuit and disconnection of a private line occur. CONSTITUTION:A main operation panel 1 transmits control program data of respective loads 3, which are stored in a storage part 6, to suboperation panels 21, 22.... In each of suboperation panels 21, 22..., these data are stored as backup data in a backup part 11. Normally, all loads 3 are controlled by the main operation panel 1. If the main operation panel 1 becomes faulty, the abnormality is detected by a signal detecting part 10 of the suboperation panel 21, and a private line 4 is connected to a signal generating part 13 of the suboperation panel 21 by a signal line switching part 15. Control data for loads 3 are transmitted to loads 3 of the suboperation panel 21 and following suboperation panels on a basis of control program data stored in the backup part 11 of the suboperation panel 21. Consequently, lower-level loads 3 of the suboperation panel 21 and following suboperation panels are controlled by the suboperation panel 21.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carrier time division transmission system. In general, a transport type time-division transmission system consists of a main operation panel, multiple sub-operation panels, and a load to be controlled, such as a lighting load. are connected via a dedicated line, and each sub-operation panel and load has its own address. From the main operation panel, transmission signals consisting of address data corresponding to the sub-operation panel and loads, control data for controlling, etc. are transmitted to each sub-operation panel and load via a dedicated line in a time-sharing manner. It is transmitted cyclically. The sub-operation panel reads the transmission signal transmitted from the main operation panel/main valve on the dedicated line, and also reads the status of external input input to the sub-operation panel to control the load by reading the signals included in the transmission signal. Return it to the main operation panel within the return period. The main operation panel receives the return signal and transmits the corresponding load to the next control data of the address data according to the state input to the sub-operation panel using the transmission signal of the main operation panel that is cyclically transmitted. Control is performed based on the contents of 7. Therefore, the load is controlled by the control data from the main operation panel and the control data returned from the main operation panel from the sub-operation panel.

Figure 1 shows the main operation panel ill, multiple sub-operation panels, and loads (
3) and 3) are arranged in a loop shape using a dedicated line 14), and normally a transmission signal is sent out in one direction as shown by the arrow in the figure to control the load (3). If the leased line (4) is disconnected or has an abnormality as shown at the center point in Figure 2, the main operation will be canceled during the signal return period of the transmitted signal from the sub-operation panel. The panel detected an abnormality and continued to control the load by sending transmission signals from the main operation panel (1) via the dedicated line (4) in both directions as shown by the arrows in Figure 2. However, in this case, if the main operation panel ILL fails or if an abnormality occurs such as disconnection of the dedicated line 14) at multiple locations, it will not be possible to continuously control part or all of the load (3). There was a problem.

The present invention has been provided in view of the above points, and even if an abnormality such as a failure of the main operation panel or a short circuit or disconnection of the dedicated line occurs,
It is an object of the present invention to provide a transport type time-division transmission system that can continue to control the load after an abnormal point by storing the current control state.

Embodiments of the present invention will be described in detail below with reference to the drawings. Figure 8 shows a block diagram, and shows the dedicated line 14) from the main operation panel fi+.
Enters the sub-operation panel (2s) K, and the dedicated line (4) is connected from this sub-operation panel (2I) to the lower sub-operation panel (2■). Furthermore, the lower sub-operation panels (2m) are also connected sequentially. Then, the main operation panel +1'l and the lower sub-operation panel (
2I), sub-operation panel (21) and further lower sub-operation panel (
2s), a plurality of loads [3] are connected between each of them. The transmission signal from the main operation panel 11) is cyclically transmitted in a time-sharing manner to the load 1B) and the sub-operation panel 12) via the dedicated edge 141 to control the load (3), as in the past. It's on. The main operation panel fi+ has a structure as shown in FIG. i51 is an input section, and this input section i
11 is for inputting column data based on the time of each load 131 from an external source. (6) is a storage unit, and the input unit (time of each load (3) input from 61 -
It is "toro" to store the control program data based on the input section 1fi+. (8) is a timer section that indicates the current time. This is a control unit for storing data in the storage unit (e), and this control unit stores information in the storage unit (e) according to the time from the timer $181.
6) Each load 13) is controlled based on the control data of 0.
Create a control for each sub-operation panel 2 based on the control data stored in the storage unit (6).
) to create backup data for the file. (
-) is a signal generation unit that generates and sends a transmission signal to each load (3) and sub-operation panel 12) according to the data trap created by the control unit (7). It is. The sub-operation @ 121 has a configuration like □ shown in Figure 4E5. 1101 is the upper main operation panel I'll, secondary operation panel 12
) is a signal detection unit that detects the transmission signal sent from the dedicated line (41).This signal detection #A- is caused by a malfunction of the upper main operation panel (1) or sub operation panel (!1), or by the upper This is to detect normality or abnormality such as short circuit or disconnection of the dedicated line 14].The signal detection unit detects normality or abnormality obtained from the transmission eK and notifies the control unit ai.
In addition, the data of the transmitted transmission signal is displayed on the sub-operation panel (!j
If the backup data includes backup data to the controller ayb, the backup data is sent to the control unit ayb. When the transmission signal is normal, the control unit az always stores the backup signal to the a operation panel (2) in the backup unit +Ill. The first backup page is for storing backup data. In addition, if the transmission signal is abnormal, the signal line switching section - is connected to the sub-operation panel 121 (t) Signal generation Ha1
Switch to the control program data of backup sBuυ and the timer section (time data of 14) indicating the current time, control data for each load product.
The first distribution signal generating section ll, 1 generated by c is the one that generates the signal to each load (31) according to the control 1' data from the control section I to each lower load i11. Line switching I
If the Aσ threat is normal, the upper dedicated line (41) and the lower dedicated line (4) are controlled via the signal detection StU.
Although it is directly connected by the switching signal from the 141
transmitted to.

The operation will be explained below. Under normal conditions, the main operation panel (1) receives a small amount of input from the input section 1) and the memory section (6).
) Create control data for each load (3) in the base building in the control program data stored in the control program data stored in 2m)...
and cyclically transmits transmission signals such as control data to the load (3) in a time-sharing manner. Each sub-operation panel (21) (21)・
..., this transmission signal is always detected to be normal, but if it is normal, it is connected to the signal detection section at the signal line switching section Q@, so it is sent. The transmission signal is sent to the 11th subordinate sub-operation panel 12)... and the load (3
). Therefore, under normal conditions, the main operation panel (1) controls the full load (3). In addition, the main operation panel 11+ sends out the control data for each load (3) stored in the memory section (6)K to each sub-operation panel (2*). (2m)...Then, use Jin's data as backup data, backup section +11
Store to 1. Therefore, the storage section (6) of the main operation panel 11)
) is stored in 0. The same data as the digital mutator is always stored in the backup section tin of the fully open operation panel 12).

Next, a case when the main operation panel il+ breaks down will be explained. An abnormality is detected at the signal detection unit (10I) of the sub-operation panel (21)', and the dedicated line (4) is switched to the sub-operation panel (
21) is connected to the signal generating section 03. The control data for each load (3) is stored in the backup section 11 of the sub-operation panel (21).
11 is stored in the control program data stored in 11,
It is sent out to the load (3) after the sub-operation panel (2,). Therefore, if the main operation panel (1) fails, the sub operation panel (
The lower load (3) after '2s) is the sub-operation panel (2*)K
More controlled.

Next, the case of an abnormality such as a short circuit or disconnection of the dedicated line (4) etc. will be explained. As shown in Figure 6, the sub'operation panel (2s) U
! s) and between the sub-operation panels (2m) and (24), the sub-operation panel (23) and the sub-operation panel (2m)
An abnormality is detected by each signal detection section 4), and the dedicated line (4) is switched to each signal generation aBft by the signal line switching section 0@.
connected to l. Sub-operation panel (23) and sub-operation panel (24)
), control data is sent to subsequent lower loads 1111 based on the control program data stored in each backup unit 11K). Therefore, the load group (81) in front of the upper sub-operation panel (21) where the dedicated line (4) has an abnormality is
) is continued to be controlled by the sub-operation panel (2,), and the loads (31) subsequent to the load group (81) are continued to be controlled by the sub-operation panel (24).

The present invention configures the main operation panel and the sub-operation panel as described above, stores and stores backup data from the main operation panel in the backup section of each operation panel, and when an abnormality occurs, the backup data is stored in the backup section of each operation panel. Since the control data is transmitted from the sub-operation panel to the lower load by detecting the sub-operation panel, when the sub-operation panel malfunctions, the control authority is transferred to the sub-operation panel located at the lower level of the malfunctioning part. Based on the control data stored in the backup section of this sub-operation panel, the load on and after the sub-operation panel will continue to be controlled, and if an abnormality occurs in the dedicated line, , the control of the load continues at the sub-operation panel after the abnormality point in the same way as in C above.In this way, even if the main operation panel or sub-operation panel fails or the leased line abnormality occurs in multiple locations, the system will continue to be controlled. This has the effect of minimizing the overall impact.

[Brief explanation of the drawing]

Fig. 1 is an overall block diagram of the conventional example, Fig. 2 is a block diagram when an abnormality occurs in the same dedicated line, □ Fig. 3 is an overall block diagram of the embodiment of the present invention', and Fig. 4 The figure is a block diagram of the main operation panel same as above, FIG. 6 is a block diagram of the sub-operation panel same as above, FIG. 6 is a block diagram showing an example when an abnormality occurs in the dedicated line same as above. Board, 12)
is the sub-operation panel, (3) is the load, (4) is the dedicated line, (6) is the storage unit, (7) is the control unit, (9) is the signal generation unit, is the signal detection unit, and 1llll is the backup unit , tla are signal line switching units. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] ill Transmission signals such as address data and control data for multiple sub-operation panels and loads are cyclically transmitted from the main operation panel to multiple sub-operation panels via a dedicated line in a time-sharing manner, and the sub-operation is performed using the transmission signals from the main operation panel. In a time-division transmission system that controls panels and loads, there is a storage unit that stores control data for each load, and a storage unit that stores control data for each load. The main operation panel is equipped with a control unit that creates backup data 2 to the sub-operation panel, and a signal generation unit that sends the data from the control unit as a transmission signal to each load and the sub-operation panel. A signal detection unit that detects whether the upper main operation panel, auxiliary operation panel, dedicated line, etc. is normal or abnormal based on Buddhist signals sent from the main operation panel or sub-operation panel via a dedicated line, and a signal detection unit that is included in the transmission signal. A backup unit that stores the backup data t-E stored in A transportable time-division transmission system characterized by: 1 being provided on an operation panel;