JPH0479622A - Home controller for optical communication - Google Patents

Abstract

PURPOSE:To make high-speed transmission by performing speed spectrum modulation on optical signals, providing a code to the signal of format of the optical signals for discriminating the necessity of repeating, and discriminating whether the address of the signal is engaged in home bus communication or radio communication. CONSTITUTION:When sealing light 2 is designated by operating the input key of a remote-control transmitter 10, the transmitter 10 sends signals carrying command for turning on the light 2 to a room space as optical signals by setting the kind of packet to '0', repeating flag to '0', transmitting address to '80', and receiving address to '01'. The optical signals are SS-modulated signals. The '0' of the kind of packet and repeating flag respectively represent a local packet and unnecessity of repeating operations. Upon receiving the optical signals, a room adapter 3 converts the signals into binary-coded pulse rows after SS-modulation and tentatively stores in a receiving memory. An arithmetic processing section discriminates that the optical signals are a command to the light 2 from the kind of packet and receiving address and gives a turning-on command signal to a driving section to turn on the light 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a home control device that controls lighting in a residence and monitors whether the home is locked or not.

[Conventional technology]

This type of home control device is conventionally known, for example, as described in Japanese Patent Laid-Open No. 1331/1983.

[Problem to be solved by the invention]

Conventional control devices of this kind have a configuration in which a main controller passes through a home bus and controls and monitors devices connected to the home bus via an interface unit, so when the number of objects to be controlled or monitored in a room increases,
The wiring work will be extensive.

Of course, in the room, if you control the equipment by sending and receiving wireless signals such as infrared signals using a room adapter or wireless remote controller (hereinafter referred to as a remote control transmitter) connected to the home bus, you can use the above wiring. Construction work can be reduced.

However, when performing infrared communication, conventionally a pulse position modulation communication method (PPM method) is used.
In addition, it is difficult to obtain a sufficient S/N ratio necessary for transmission due to the noise caused by the light from lighting lamps and sunlight. This is considerably slower than the transmission speed of 9,600 bps, and as a result, when the number of devices to be handled increases and the amount of data to be transmitted increases, there is a problem that it becomes impossible to cope with this increase.

The present invention has been made to solve the above problems, and has higher reliability than conventional methods, and can transmit and receive transmission data at high speed. The purpose is to provide an optical communication home control device.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes an infrared remote controller, one room adapter connected to a main controller through a home bus, and an infrared remote controller connected to a device to control or control the device. In a home control device equipped with an optical communication control terminal that notifies equipment status, the room adapter receives the optical signal transmitted by the infrared remote controller or the optical communication system '4B terminal and the signal on the home bus. It has a relay function of relaying based on an address, the optical signal is a spread spectrum modulated signal, the signal former node has a code for determining the presence or absence of relay, and the destination of the signal is: The above (No. 8 format Pake/Node type code) is used to determine whether it is home bus communication or optical communication.

[Effect]

In the present invention, an optical signal from a remote control transmitter is relayed directly or through an adapter, and this wireless signal is delivered to a control terminal of a designated device, and the device is controlled by the control unit.

In addition, the signal from the main controller is converted into an optical signal by the room adapter, and this optical signal is delivered to the control terminal of the specified device to control the device.

Signals from the equipment are converted into optical signals by the control terminal and transmitted, relayed by the room adapter and sent onto the home bus.

The optical signal to be transmitted is a signal spread spectrum modulated with a pseudo-noise code, and the receiving side generates the same pseudo-noise code as above and demodulates it while synchronously detecting the pseudo-noise code included in the optical signal. Therefore, a sufficient S/N ratio can be obtained even under noise from lighting lights, etc., and high-speed transmission can be performed.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In Figure 1, HBS is a home bath, 1 is a main controller (bus control circuit), 2 is a ceiling light, and 3 is a room adapter, which has a block configuration as shown in Figure 2 and is installed on the ceiling of the room. has been done. 4 is a downlight. 5 is a security sensor such as a lock detector for a window 6 in the room, and sends the sensor output to an optical communication control terminal 7. 8
is an electric shutter whose opening and closing are controlled by signals from the optical communication control line terminal 9. 10 is a wireless remote controller (hereinafter referred to as a remote control transmitter),
It has a configuration as shown in FIG. 5, and after performing spectrum spread modulation on a coded signal, it transmits an infrared signal R that has been electrically/optically converted. 30 is an air conditioning device connected to the home bus HBS via an interface unit (IFU) 31.

In FIG. 2, 11 is a light receiving section, 12 is a reception memory, 1
3 is an arithmetic processing section, 14 is a transmission section, 15 is a light emitting section, and 16 is a power supply control section, and 11 to 16 constitute the room adapter 3. This power supply control section 16 has a ceiling light drive section and a downlight drive section, and these drive sections are A
It has a switching section connected to the C power line, and when it receives an ON signal, the switching section operates to supply power to the ceiling light 2 and downlight 4.

The light receiving section 11 includes a photo/electric conversion element 11A, a spread spectrum demodulation circuit (SS demodulation circuit) 11B, and a primary demodulation circuit 1.
1C, and the light emitting section 15 includes an electro/optical conversion element 15A, a spectrum modulation circuit (SS modulation circuit) 15B, and a primary modulation circuit 15C.

The SS modulation unit 15B performs primary modulation (FM modulation, etc.) on the transmission data generated by the transmission unit 14, and then multiplies it with a pseudo-noise code to obtain a spectrum-spread transmission signal, as shown in FIG. , a pseudo noise signal generator 31, and a multiplier 32.

The SS demodulation unit 11B correlates the transmission data input through the optical/electrical conversion element 11A with the same pseudo noise code used on the transmission side, demodulates the correlation value based on the sign of the determination level, and then As shown in FIG. 4, it has a pseudo-noise signal generator 34, a correlator 35, a synchronization control section 37, and a data demodulation section 36.

In FIG. 5, 41 is an input section, 42 is a signal processing section, 4
3 is an SS modulation circuit, and 44 is a light emitting section.

The control terminals 7 and 9, as shown in FIG.
5 and an input/control section 26, and the light receiving section 21 has the same configuration as the light receiving section 11 of the room adapter 3. Further, the light emitting section 25 is also the same as the light emitting section 15 of the room adapter 3.
It has a similar configuration.

Note that a dead zone T2, which will be described later, is set in the arithmetic processing section 13.23.

The main controller 1, the ceiling light 2, the room adapter 3, the control terminal 7 for the security sensor 5, the control terminal 9 for the electric shutter 8, the remote control transmitter 10, and the interface unit 31 are shown in parentheses in FIG. as,
An address code will be given.

() is an address for home bus HBS communication, and "" is an address for infrared communication (local communication).

The operation of this system will be explained below.

(1) First, the case where the ceiling light 2A is controlled using the remote control transmitter 10 will be described.

When the input key of the remote control transmitter 10 is operated to specify the shilling light 2, the remote control transmitter 10 sets the packet type to 0, the relay flag to O1, the transmission address to "80", and the received data in the format shown in FIG. Change the address to “0”
1'' and sends out a signal containing a command to turn on the shilling light 2 as an optical signal R to the room space. This optical signal is an SS modulated signal. In the signal formant of FIG. 8, packet type O is a local packet, and packet type 1 is an HBS bucket. A relay flag of 0 indicates that a relay operation is not required, and a relay flag of 1 indicates that it is a relay stage, and the control terminal sets the relay flag to 0 and transmits to the next stage.

The room adapter 3 receives the optical signal at the light receiving section 11, performs SS demodulation, converts it into a binary pulse train, and temporarily stores it in the reception memory 12. The arithmetic processing unit 13 determines that the command is addressed to the ceiling light 2 from the packet type and the received address, and further determines the TS, OPC, and OPH commands and decodes that the command is an ON command for the ceiling light 2. Then, an ON command signal is given to the ceiling light drive section (not shown) of the power supply control section 16 to turn on the ceiling light 2.

(2) Next, the case where the remote control transmitter 10 controls the opening of the electric shutter 8 will be described.

When the input key of the remote control transmitter 10 is operated to specify the control terminal 9 of the electric shutter 8, the remote control transmitter IO sets the packet type to 0, in the format shown in FIG.
Sending address is "80", receiving address is rl OJ
, the relay flag is set to 1, and a signal containing a command to open the electric shutter 8 is transmitted as an optical signal. The room adapter 3 that has received this optical signal demodulates this optical signal in the light receiving section 11, converts it into a binary pulse train and stores it in the receiving memory 12, and the arithmetic processing section 13 demodulates this optical signal in the same manner as described above. Since it is addressed to another terminal and the relay flag is 1, it is determined that relaying is required, and the relay flag is changed to O as shown in Figure 9(a), without changing other data. The signal left unchanged is converted into a pulse train by the transmitting section 14 and sent to the light emitting section 15, and the SS modulated signal is transmitted from the light emitting section 15 as an optical signal. The control terminal 9 of the electric shutter 8 learns from the received address that this optical signal is addressed to its own terminal, decodes the command, and sends a shutter open command signal to the drive section of the electric shutter 8.

If the optical signal from the remote control transmitter 10 arrives directly at the control terminal 9 without going through the room adapter 3, the reception address of the optical signal is addressed to the control terminal 9, so it is received.
Since the relay flag of the optical signal is 1, there is a possibility that a signal with a relay flag of 0 will be subsequently received from the room adapter 3. Therefore, as shown in FIG. However, optical signals that arrive within this fuwawa zone T2 are not received, and optical signals of the same command are not accepted more than once.

This Fuwatai T2 is T2> (TL +TI) ・・・・・・・・・・・・
(11 However, TL: Processing time delay TI: Transmission time (3) When controlling the opening of the electric shank-8 from the main controller 1, the bus control 1 uses packet type 1, reception address"
10'' signal is sent onto the home bus. This signal is received by the room adapter 3, and the room adapter 3 transmits an optical signal with the packet type O2 and the relay flag set to O. The control terminal 9 receives the optical signal of the relay flag O and controls the electric shutter 8 to open.

(4) The optical signal transmitted by the control terminal 7 in response to the alarm signal output by the security sensor 5 is transmitted with the transmission address set to "11", the reception address set to (01), and the relay flag set to O,
It is received by the room adapter 3.

The room adapter 3 sets the packet type to 1 and sends this signal onto the home bus HBS, and the main controller 1 receives this signal and lights up an alarm lamp (not shown) or the like.

In this way, the equipment in the room has a control terminal, and the equipment is controlled via wireless communication, so the effort and cost of wiring work is significantly reduced and the construction rules are simpler than in the past. Therefore, construction errors can be eliminated, and the addition of equipment can be easily done as there is no need to install communication lines.

In this embodiment, the optical signals transmitted and received between the remote control transmitter 10, the control terminal 7.9, and the room adapter 3 are SS-modulated signals, so they are not susceptible to noise such as light from lamps or sunlight. It is highly robust and can achieve high transmission speeds similar to home bus communications.

In addition, in the above embodiment, the room adapter 3 is arranged separately from the ceiling light 2, but the room adapter 3
By arranging it inside the ceiling light 3, there is no need for individual wiring, and it is possible to obtain the advantage that the aesthetic appearance of the room is improved.

Of course, the room adapter 3 may be built into other equipment.

Furthermore, in the above embodiment, in order to determine whether or not the signal requires relaying, a flag is provided in the signal format to determine whether relaying is necessary or not, but this is a relay counter or the like. Also good.

In addition, the SS modulation circuit and SS demodulation circuit in the embodiment are 1
These circuits are not examples and are not limited to these circuits.

〔Effect of the invention〕

As explained above, in the present invention, transmission data is SS-modulated and transmitted as an optical signal, so even if there is other noise light in the transmission space, a sufficient S/N ratio can be obtained, and one It can significantly improve the reliability of data transmission in residential spaces where there are multiple lighting fixtures in a room, and
Since high-speed transmission is possible, it is possible to sufficiently cope with an increase in the amount of data to be transmitted due to an increase in the number of devices handled.

By equipping the room adapter, which relays home bus communication and local communication, with a device control function, it is possible to further reduce wiring work compared to conventional methods, and it is also easy to add devices. It has the advantage of being highly scalable.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIGS. 2 to 6 are specific block diagrams of each part in the above embodiment, FIG. 7 is a diagram showing an example of address code assignment, and FIG. 8 is a diagram showing an example of assigning an address code. A diagram showing the signal format in the above embodiment, FIG. 9 (al
and (bl is a signal time chart. 1-main controller, 2-ceiling light, 3-room adapter, 4-downlight, 5-security sensor, 7.9-control terminal, 8-electric chassis 10- Remote control transmitter, 11 B-3S demodulation circuit port, 15B, 43-3
S modulation circuit. Patent applicant: Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru

Claims (1)

[Claims] (1) Infrared remote controller, one room adapter connected to the main controller through the home bus,
In a home control device equipped with an optical communication control terminal that is connected to equipment and controls the equipment or notifies the status of the equipment, the room adapter is capable of transmitting an optical signal transmitted by the infrared remote controller or the optical communication control terminal and the home controller. It has a relay function that relays signals on the bus based on the reception address of these signals, and the optical signal is a spread spectrum modulated signal, and the signal format is as follows.
The optical system has a code for determining whether or not relaying is necessary, and whether the destination of the signal is home bus communication or wireless communication is determined based on the packet type code of the signal format. Communication home control device.