JPS62222796A - Wireless local transmission system - Google Patents

Abstract

PURPOSE:To prevent an erroneous operation due to plural transmission signals produced at the time of operating an optical wireless operating device once by receiving an optical wireless signal, performing the time delay operation for a prescribed time in case of storing the address data of terminal equipment and making the operation data of the same address received within the time invalid. CONSTITUTION:The optical wireless signal is received by the receiving part 7 of an optical wireless repeater 5 and the address data and the operating data are detected. A master machine 1 recognizes that an illumination load 3 operates and returns a processing completion signal including the address data of the terminal equipment 2 to the optical wireless repeater 5. When the address data of this processing completion signal is stored in an address data memory part 9, a timer 11 is set to start the limiting time operation. When the optical wireless signal transmitted from the optical wireless operating device 6 is received by the receiving part 7, it is compared with the address data stored in the address data memory part 9 in a comparison part 10. Since the both address data naturally coincide, the comparison part 10 makes the operating data of the receiving part 7 invalid.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a time division multiplex transmission system comprising: an optical wireless operator operated to control the operation of a load;
The present invention relates to a wireless local transmission system equipped with an optical wireless intermediate device that receives an optical wireless signal from the optical wireless controller, calls a terminal device, and controls the operation of a load.

[Background Art] FIG. 6 shows a schematic configuration diagram of this type of time division multiplex transmission system. First, to explain the basic configuration of this time division multiplex transmission system, a plurality of terminal devices 2 each having a unique address are connected to a parent t111 consisting of a CPU "!F" via a signal line 5. The control output of 2 controls the blinking of, for example, the lighting loads 3 that are serialized on one or the same channel.It is cyclically and time-divisionally transmitted from the main unit 1 to each terminal 2 via the signal a5. The transmission signal mat 7 has a configuration as shown in Fig. 7.In other words, the start toy No. 8 for synchronization, address data corresponding to each terminal 2, and lighting/extinguishing of the lighting load 3. control data for controlling etc., and input data for load control of the lighting load 3 from the terminal device 2 to the parent 8.
! The transmission (IT number) consists of the return waiting period for sending back to 1.

Therefore, from the base unit 1, transmission signals consisting of start, address data, control data, return f89, etc. are cyclically transmitted to each terminal 2 via the third line 5 in a time-sharing manner. In step 2, if its own address matches the address data of the transmission signal, it reads the control data following the address data, and controls operations such as turning on and off the lighting load 3 based on this control data. The data on the blinking state of the lighting load 3 is returned to the main device 1 as monitoring input data within the return waiting period of the transmission signal, and the main device 1 monitors the state of the lighting load 3 based on the monitoring input data. Based on the monitoring input data from the terminal 2, the base unit 1't'
The control data is sent as control data when transmitting the next transmission signal so as to turn on or off the display section 6. In the terminal device 2, the display section 6 is controlled to be turned on or off based on this control data. The terminal device 2 is provided with a switch 4 that controls the lighting load 3 to blink, and the manual operation of this switch 4 is m8!1 as described above as monitoring input data.
The main device 1 transmits control data for turning on or off the lighting load 3 to the terminal device 2 based on the monitoring input data.

By the way, in the above time division multiplex transmission system, t! , 8
As shown in the figure, an optical wireless generator 6 that is operated to blink the lighting load 3 and transmits the address data and operation data of the terminal 2 that controls the blinking of the lighting load 3 multiple times; Receives the signal from this optical wireless controller 6, exchanges data with the master device 1 in the dark, calls the terminal device 2 corresponding to the lighting load 3 controlled by the above address data, and lights the device according to the production data. Some devices include a wireless local transmission system consisting of an optical wireless repeater 5 that controls the operation of the load 3. The address data and operation data of the optical wireless operator 6 correspond to the address data and operation data of the terminal 2 of the time division multiplex transmission system, and both data are optically wirelessly transmitted as code data using an optical wireless signal. It is transmitted to repeater 5. The optical wireless intermediate device 5 receives this code data, and the optical wireless repeater 5 transmits the address data to the base unit A, calls the terminal device 2, and transmits the operation data to the called terminal device 2. It is transmitted via Aiso 1 and operates as if a normal wall switch had been pressed.

The optical wireless controller 6 sends out a signal of about 200 feeds per package 5 times during the redoubt, and the receiver 7 of the optical wireless repeater 5 receives the 411 signal and can receive the same data twice. When the data is successfully received, the address data and operation data are output to the wall switch terminal 7 and the wall switch starts operating as a wall switch of the time division multiplex transmission system.

When base unit 1 confirms that the processing for that operation has been completed, it returns a completion signal to optical wireless repeater 5 and controls optical wireless repeater 5 to wait for reception of an optical wireless signal.

However, in the above-mentioned optical wireless repeater 5, if the wall switch operation is processed quickly, the wall switch operation will be performed once in the first two times of the optical wireless signal, and in the last two times. The wall switch is activated once again. In other words, in the case of such a wall switch, it is a push-on, push-off type switch, and the signal for turning on and turning off the lighting load 3 is the same signal, so the operation of pressing it twice is performed, and it cannot be turned off. There was a problem where the lights would turn on and then go out again.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its purpose is to provide a wireless local transmission system that does not cause malfunctions similar to those caused by double pressing. .

[Disclosure of the Invention 1 (Embodiment) Fig. fjS1 is a diagram showing an embodiment of the present invention.This embodiment, like the conventional example, implements a wireless local transmission system using an optical wireless repeater 5 and an optical wireless controller 6. It is made up of. The vj characteristic of this embodiment is that the terminal device 2 whose address has undergone one fluctuation is not activated within a predetermined period of time.

The configuration of the optical wireless repeater 5 will be described below.

This optical wireless repeater 5 has an optical wireless operation rj6
A receiving section 7 receives an optical wireless signal from the receiver, and the output of this receiving section 7 sends and receives data to and from the base unit 1, calls a terminal device 2 corresponding to the address data, and receives a load, for example, a lighting load 3, based on the operation data. a wall switch terminal section 8 that operates the wall switch terminal section 8; an address data storage section 9 that stores the address data of the terminal device 2 when the lighting load 3 is controlled by the wall switch terminal section 8; and this address data storage section 9. The address data storage section 9 performs a timed operation for a predetermined time from when the address data is stored in the address data storage section 9.
A timer 11 erases the memory contents of the timer 11, and the address data newly received by the receiving section 7 within the time limit of this timer 11 is compared with the address data stored in the address data storage section 9, and the address data is The comparison section 10 invalidates the operation data of the reception section 7 when the two match. In other words, the address data storage 859, the timer 11, and the comparator 10 are provided as a configuration for preventing an operation similar to a double press.

The operation will be explained below. It is assumed that, for example, a switch of the optical wireless controller 6 that controls lighting of the lighting load 3 is operated, and an optical wireless signal is sent to the optical wireless repeater 5. This optical wireless signal is received by the receiving section 7 of the optical wireless repeater 5. Then, the receiving section 7 detects the address data and operation data from the optical wireless signal, and when the optical wireless signal transmitted five times from the optical wireless operator 6 is received twice, the address data and operation data are sent to the wall. Input to the switch terminal section 8. In addition,
Although the details will be described later, the comparator 10 compares the address data and finds that the 7 address data is different from the address data stored at this time in the address data storage 9, so the output of the receiver 7 is The switch terminal 8 is operated manually.

Then, the wall switch terminal 8 to which the address data and operation data have been input sends and receives signals to and from the parent Wi 1 in the same manner as explained in the conventional example, and receives and receives the operation data from the optical wireless controller 6. By controlling the terminal device 2 based on this, blinking control of the lighting load 3 is performed. Then, when base device 1 confirms that lighting load 3 has operated, it sends back a processing end signal including address data of terminal device 2 to optical wireless repeater 5 . In response to this processing end signal, the wall switch terminal 8 ends its operation as a wall switch.

At this time, the address data of the processing end signal is stored in the address data storage section 9, and the timer 11 is set to start a time-limiting operation.

Then, the address data storage section 9 stores the address data for a predetermined time (for example, about 2 seconds) set in the timer 11. The address data stored in the address data storage section 9 is input to the comparison section 10.

Assume that after the operation of the lighting load 3 is completed, the last two optical wireless signals transmitted from the optical wireless controller 6 are received by the receiving unit 7. At this time, this Uke (f
The address data received by the f unit 7 is compared with the address data stored in the address data storage unit 9 by a comparison unit 10. Since these two address data naturally match, the comparator 10 invalidates the operation data of the receiver 7. In other words, address data and operation data are not input to the wall switch terminal device 8. Therefore, the lighting load 3 is operated by the wall switch terminal 8, and the same operation as when pressing the switch twice is avoided. In addition, as mentioned above, other receivers (g t,
When the receiving section 7 receives a received signal having different address data, the optical wireless repeater 5 operates as a wall switch if the same signal is received twice.

By the way, the above wireless local transmission system has the following problems. The reply signal that the optical wireless repeater 5 sends to m8!1 is sent back using the reply signal generating circuit 12, which includes a transistor Q, resistors R, and R2 shown in FIG.

That is, as shown in FIG. 2, the reply signal is sent back in the current mode using constant current pulses.

Note that the F runnostar Q1 of the reply signal generation circuit 12 is as follows:
The conduction is controlled by the output of the signal processing section 13 for performing the wall switch operation. Since this constant current pulse has very short rise and fall times, there is a problem in that one change point of this constant current pulse radiates noise into the AM radio band and interferes with AM radio reception. Therefore, as shown in FIG. 4, by inserting one capacitor C1 between the base of the transistor Q1 and the ground, the fifth
As shown in the figure, the rise and fall of the constant current pulse are slowed down to reduce the noise radiation.

[Effects of the Invention 1] As described above, the present invention includes an optical wireless controller that transmits address data and operation data of a terminal corresponding to a load to be controlled multiple times, and a wireless controller that receives wireless signals from this wireless controller. Optical wireless operation in a wireless local transmission system equipped with an optical wireless repeater that sends and receives data in the dark with Shimiso, calls a terminal according to the address data, and transmits the production data to the terminal. a receiving unit that receives an optical wireless signal from the device;
A wall switch terminal section that sends and receives data to and from the base unit through the output of this receiving section, and an address data storage that stores address data of the terminal device corresponding to the load when the wall switch terminal section controls the load. a timer that performs a time-limited operation for a predetermined period of time from when the address data is stored in the address data storage section and erases the memory contents of the address data section after the time limit expires; a comparison unit that compares the address data newly received by the reception unit with the address data stored in the address data storage unit and invalidates the operation data received by the 916 unit when both address data match; Since the optical wireless repeater is equipped with this, the address data of the terminal device that controls the operation of the load that has been operated by one fluctuation is stored in the address data storage section, and the same address data as the above address data is stored within the time limit operation period of the timer. When the address data is received by the receiving unit, the comparison unit can invalidate the operation data, which is the receive 3 signal received by the receiving unit, so the optical wireless agitator can be operated one change. This has the effect of preventing the same load from performing a reversal operation, that is, from performing an operation similar to double pressing due to multiple transmissions of No. 43, which sometimes occur.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a circuit diagram showing the reply signal generation circuit of the above, Fig. 3 is an output waveform diagram of the same as the above, and Figs. A circuit diagram showing the reply signal generation circuit, FIG. 5 is an output waveform diagram of the same as above, FIG. The figure is a specific circuit diagram of the same as above. 1 is m8! , 2 is a terminal, 3 is a lighting load, 5 is an optical wireless repeater, 6 is an optical wireless repeater, 7 is a receiver, 8
9 is a wall switch terminal, 9 is an address data storage unit, and 10 is a wall switch terminal.
1 is a comparison unit, and 11 is a timer. Agent Patent Attorney Ishi 1) Ai 7th 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] (1) A base unit, and a plurality of terminal devices connected to the base unit via a signal line, each having a unique address, and address data corresponding to each terminal unit from the base unit via the signal line,
A transmission signal consisting of control data for load control connected to a terminal device, a return waiting period, etc. is transmitted to each terminal device in a time-division manner, and load control input and load control status are transmitted to each terminal device within the return waiting period of the transmission signal. A time division multiplex transmission system in which monitoring input data such as data is sent back from the corresponding terminal to the base unit, and is an optical wireless operation in which address data and operation data of the terminal corresponding to the load to be controlled are transmitted multiple times. and an optical wireless repeater that receives a wireless signal from the optical wireless operating device, sends and receives data between the base device, calls a terminal device according to the address data, and transmits operation data to the terminal device. In a wireless local transmission system comprising: a receiving section that receives an optical wireless signal from an optical wireless controller, a wall switch terminal section that exchanges data with a base unit using the output of the receiving section, and this wall switch terminal section. When the load is controlled, an address data storage unit stores the address data of the terminal device corresponding to the load, and a timed operation is performed for a predetermined time from the time the address data is stored in the address data storage unit. A timer erases the memory contents of the address data storage unit after the time expires, and compares the address data newly received by the reception unit within the time limit of this timer with the address data stored in the address data storage unit. A wireless local transmission system, characterized in that the optical wireless repeater comprises a comparison section that invalidates the operation data received by the reception section when both address data match.