JPS63208394A - Receiver for wireless system - Google Patents

Abstract

PURPOSE:To eliminate the restriction of a location for a receiver mount position by fitting a dome light transmission cover to an upper face of a receiver main body and a light shield device shutting the light from a specific direction so as to reduce the effect of light by a lighting fixture. CONSTITUTION:The wireless system is equipped with a transmitter having operation switches and plural receivers each receiving a wireless signal compris ing address data sent from the transmitter and control data or the like for load control. A receiver receiving the wireless signal sent in time division multi plex from the transmitter and whose address is coincident therewith controls a load based on the control data in succession to the address data of the trans mission code sent via a sigal line. A dome shaped light transmission cover 40 is provided to the upper face of the receiver main body 39 and a light shield hood 41 shutting a light from a specific direction is fitted thereto. The tight from the lighting fixture is shut by the hood 41 to eliminate the restriction of the mount location of the receivers.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a wireless system receiver that is coupled to a time division multiplex transmission remote control device and used in a wireless system that transmits optical signals.

[Background Art J Although the details will be described later, this type of wireless system includes a transmitter having an operation switch, and a plurality of wireless signals that receive wireless signals including address data, control data for load control, etc. transmitted from the transmitter. The receiver, which receives the time-division multiplexed wireless signal from the transmitter and whose addresses match, controls the load based on the control data following the address data of the transmission code sent via the signal line. It is something. The receiver includes a plurality of light receiving elements each receiving light from a plurality of different directions, thereby receiving the optical signal transmitted from the transmitter over a 360° range.

By the way, this type of conventional receiver does not allow you to select the direction of light reception, so when the receiver is mounted on a building surface such as a ceiling, there is a problem that it is easily affected by lighting equipment. . In other words, if priority is given to the mounting position of the receiver, as shown in FIG. Lowering the light receiving sensitivity of the transmitter (not shown) makes it difficult for the optical signal from the transmitter (not shown) to reach receiver A, which shortens the control distance of transmitter A by the transmitter, and vice versa. If receiver A was installed to avoid the influence, there was a problem in that the installation position of receiver A was restricted.

[Object of the Invention] The present invention has been made in view of the above points, and its object is to provide a wireless system that can be installed in any location without being affected by light from lighting equipment. The objective is to provide a receiver for

[Disclosure of the Invention 1 (Configuration) The present invention includes a transmitter having an operation switch and a plurality of receivers that receive wireless signals consisting of address data, control data for load control, etc. transmitted from the transmitter. The receiver that receives the wireless signal time-division multiplexed from the transmitter and whose addresses match controls the load based on the control data following the address data of the transmission code sent via the signal line. It is used in wireless systems that are equipped with a dome-shaped transparent cover that is attached to the top surface of the receiver body and transmits the transmitted signal from the transmitter that enters from all directions.
A light blocking device that blocks light from the transmitter from a specific direction is attached to the transparent cover, and the light blocking device blocks light in the direction affected by light from lighting equipment, etc., and the light receiving direction of the receiver is fixed. This reduces the influence of light from lighting equipment and eliminates restrictions on where the receiver can be installed.

(Example 1) Hereinafter, the present invention will be described in detail with reference to the drawings.

First, a remote control device in which the receiver of this embodiment is used will be explained based on FIGS. 8 and 9.

This remote control device performs time-division multiplex transmission of signals through dedicated signal lines to send and receive signals and control a load. FIG. 8 shows a schematic configuration of this remote control device. The central control device 1 and a plurality of monitoring terminals 2 and control terminals 3 each having a unique address are connected by a pair of signals #iI4.

Transmission signal Vs sent from central control device 1 to signal line 4
As shown in FIG. 9(a), the start pulse signal ST indicates the start of signal transmission, the mode data signal MD indicates the signal mode, the address data signal AD1 for calling the terminals 2 and 3, and the control data for controlling the load 7. A multi-polar (±24
V) is a time division multiplexed signal in which data is transmitted by pulse width modulation. In each terminal device 2.3, when the address data of the transmission signal S received via the signal line 4 matches its own unique address data, it takes in the control data of the transmission signal Vs, and
The monitoring data is synchronized with the return waiting signal WT of the transmission signal Vs.
The evening signal is returned as a current mode signal (a signal sent by short-circuiting signals #X4 through an appropriate low impedance).

In addition, a dummy transmission signal ■S is constantly sent to the central control unit rft1, and when an interrupt signal Vi as shown in @9 (l) sent back from any of the monitoring terminals 2 is received. , detects the interrupt generating terminal 2 and outputs the interrupt to the terminal 2.
performs interrupt processing to access and return monitoring data. On the other hand, when the monitoring terminal 2 receives the monitoring input, the start pulse signal S of the dummy transmission signal Vs
It generates an interrupt signal Vi in synchronization with T, and also generates an address confirmation mode transmission signal Vs from the central controller 1.
The central control unit Wt1 returns its own unique address data in synchronization with the return standby signal WT, and the central control unit Wt1 transmits the interrupt access mode transmission f in response to the interrupt.
When the f1 Vs is transmitted, the monitoring data corresponding to the monitoring input is sent back, and based on the monitoring data sent back from the monitoring terminal 2 to the central control device 1, it is transmitted to the control terminal 3. It is designed to create control data. Further, the monitoring terminal 2 is provided with an individual operation switch 5 that individually controls a load 7 such as a light.

Therefore, the transmission signal Vs including control data from the monitoring terminal device 2 is time-division multiplexed and transmitted to the corresponding control terminal device 3.
Here, control data is taken in and the remote control relay 6 is driven to control the load 7.

Next, a wireless system using optical communication coupled with the remote control device will be described. Fig. 10 shows a schematic configuration diagram of the wireless system itself, and Fig. 14 shows a schematic configuration diagram of the wireless system itself.
The figure shows a schematic diagram of a part of the wireless system coupled to the above-mentioned remote control device. As shown in FIG. 14, the transmitter 8 that emits light may be of a type that is hung on a wall 22, a desktop type that is placed on a desk 23, or a type that is placed on a desk 24 used for conferences. There is. Transmitter 8
A plurality of satellite receivers 9 are installed on the ceiling 25 to receive optical transmission codes from the lighting equipment 26 to be controlled.
There are also many locations. The transmitter 8 transmits, for example, a transmission code in which control data for controlling the lighting equipment 26 on and off is combined with address data in the form of an optical wireless signal shown in FIG. 11(a). As shown in FIG. 12, this optical wireless signal transmission hood has address data A.
It consists of D1 control data CD. Here, the mode data SI preceding the address data AD is a mode for selecting whether to perform another system operation such as a remote control device for time division multiplex transmission or an individual operation in the wireless system.

Specifically, as shown in FIG. 13, the transmitter 8 is a light-emitting device that includes an address setting section 29 for setting an address, a signal processing section 30 for creating a transmission code, and a light emitting diode for transmitting the transmission code as an optical wireless signal. It is composed of a section 31 and the like.

On the other hand, a satellite receiver 9 that receives optical wireless signals
is structured as follows. That is, as shown in FIG. 10, an optical receiver 10 receives an optical wireless signal from a transmitter 8, an output from this optical receiver 10 (a tuning circuit 11 having a tuning function for detecting a carrier wave No. 8, A satellite receiver 9 includes a baseband converter 12 that converts the output of the tuning circuit 11 into a baseband signal as shown in FIG. 11(b).

The baseband signal from the satellite receiver 9 is sent out to a dedicated signal line 13 and transmitted to a system receiver 4B 14 and a plurality of individual receivers 18 connected to the signal line 13. The system receiver 14 that constitutes the wireless interface 7 receives baseband signals from the satellite receiver 9 all at once, and the receiver 15 that receives the baseband signals and the system whose operation is described above are separate. a setting unit 17 that selects the address data, and address data obtained by converting the baseband signal into a binary parallel signal in the receiving unit 15;
System interface 16 into which control data is input
It is composed of etc. This system interface 16 is connected to the signal line 4 of the remote control device, and is processed according to the procedure on the central control device 1 side. The receiving section 15 of the system receiver 14 extracts only the set signal 7 format from the baseband signal, the setting section 17 determines whether it is a system operation or an individual operation, and the received address data and control data are sent to the 913 section 15. output to System Inc.-7Ace 16.

As shown in FIG. 10, the individual receiver 18 includes a receiving section 19 that receives the baseband signal from the satellite receiver 9.
, an address setting section 20 for setting a unique address, and a load interface 21 for driving a load control relay, etc. based on control data of the can. ? It is composed of. That is, in this individual receiver 18, the baseband signal and the setting address of each individual receiver 18 are checked,
If they match, the load control relay or the like is driven by the load interface 21 to control the load 27 such as the above-mentioned lighting equipment. Note that a series circuit of a contact 21a of a relay driven by the load interface 21 and a load 27 is connected to a power source 28.

Thus, the optical wireless signal transmitted from the transmitter 8 is received by the nearest satellite receiver 9, and the tuned circuit 1
1 detects only the signal of the frequency determined by 1, and converts it into a baseband signal by the baseband conversion unit 12,
It is transmitted via signal line 13 to each receiver 14,18.

If mode data S■ of the transmission code selects individual operation, the system receiver 14 does not respond and the individual receiver 18
is the target. The address of the baseband signal is checked in each individual receiver 18, and if it matches the set address, the load interface 21 drives the relay based on the #71J control data to control the load 27. here,
If the mode data SI of the optical wireless signal from the transmitter 8 selects system operation, the system receiver 14 will respond. In other words, the baseband signal is
The address and control data converted into parallel signals are input to the system interface 16, and are processed according to the procedures on the multiplex transmission control side.

FIG. 14 shows a configuration diagram of a combination of a remote control device and a wireless system consisting of a transmitter 8, a satellite receiver 9, and a system receiver 14. 14th
In the figure, a central control device 1, a terminal device 3 having a remote control relay, a system receiver 14, etc. are housed in a distribution board 36. Further, a transformer 35 for supplying power to the terminal device 3 is also arranged. Therefore, the optical wireless signal transmitted from the transmitter 8 is received by the satellite receiver 9, converted into a baseband signal by the satellite receiver 9, and transmitted to the system receiver 14 via the N line 13. Then, the address and control data of the transmitter 8 are stored in the system receiver 14, which becomes the address of the terminal device 3, and the system receiver 14 is accessed by the central control device 1.
As described above, processing will be performed according to the normal procedure on the central control device 1 side.

The above is an overall explanation of the combination of a wireless system with a remote control device equipped with this embodiment. Below, we will explain the satellite receiver (hereinafter referred to as 11th receiver) which is a feature of this embodiment. explain.

As shown in FIG. 1, the receiver includes a dome-shaped light-transmitting cover 40 attached to the upper surface of the receiver main body 39, which transmits the signal 4g transmitted from the transmitter, which is incident from all around the circumference. A light shielding device is attached to the transparent cover 40 to shield light from the transmitter in a specific direction (C). In this embodiment, as the light blocking device, a light blocking hood 41 is formed in a shape to block outgoing signals incident from a specific angle direction of the light transmitting cover 40.
This light shielding hood 41 is shown in FIG. The light-shielding hood 41 is formed into a dome shape with a spherical upper part and a cylindrical lower part, and, for example, as shown in FIG. 1, the upper half is cut out leaving the lower part to transmit the optical signal from the transmitter. The uncut portion becomes the light shielding portion 41a. Note that the shape of the continuous light section 41a may be formed so that less than half of the upper part of the light-transmitting cover 40 is left uncut, as shown in FIG. Furthermore, the shape can also be formed into an appropriate shape depending on the usage condition. The light-shielding hood 41 is attached to the three receiver bodies by using an engaging protrusion 42 provided around the lower circumferential surface of the light-shielding hood 41 and the inner circumferential surface of the opening formed on the upper surface of the three receiver bodies. This is done with the engagement groove 43 of. That is, the light-shielding cover 418 is formed of synthetic resin or the like, and the flexibility of the light-shielding cover 41 is utilized to fit the engagement protrusion 42 into the engagement groove 43.
Attach the light-shielding cover 41 to the receiver body 39 by fitting
Attach it to the opening. The light shielding cover 41 is attached to the receiver body 39
The engagement groove 43 and the engagement protrusion 42 are engaged so as to be rotatable within the opening, and the light-shielding cover 41 is rotated to block light according to the direction in which light from an illuminator or the like is affected. The direction of the portion 41a can be changed. The transparent cover 40 is
The light-transmitting cover 40 is attached to a light-shielding hood 41 from the inside of the receiver main body 39, and the light-transmitting cover 40 is attached to a printed circuit board 45 on which a light-receiving element 44 is mounted. It is fixed by attaching it to.

The operation of the light shielding hood 41 of this embodiment will be explained with reference to FIG. Fluorescent lamp 46 of the lighting fixture in the state shown relative to the receiver
When the fluorescent lamp 46 is located, as shown by the arrow in the figure,
light is illuminated on the receiver.

Therefore, the light shielding hood 41 is rotated so that the light shielding part 41n is in the direction of the fluorescent lamp 46, and the light from the fluorescent lamp 46 is directed to the light shielding part 4.
By blocking light at 1a, the receiver will not malfunction due to the light from this lighting fixture.

Moreover, since it is possible to prevent the receiver from being affected by light from lighting equipment as described above, there is no restriction on the mounting location of the receiver.

By the way, if the light shielding hood 41 is rotatable as described above, there is an advantage that the light shielding direction can be easily changed. However, if the light shielding hood 41 is easily rotated by some force, for example, It is conceivable that the light shielding hood 41 will not be able to perform its original function. Therefore, in order to prevent the light-shielding hood 41 from easily rotating, a rotation regulating means is provided on either the receiver body 39 or the light-transmitting cover 40 and the light-shielding hood 41 to prevent the light-shielding hood 41 from easily rotating. It's okay. FIG. 5 and FIG. 6 show a continuous light hood 41 and a transparent cover 40 that prevent the light shielding hood 41 from easily rotating.
shows. As shown in FIG. 6, a plurality of protrusions 47 are provided around the lower outer circumferential surface of the transparent cover 40 as engaging means, and the protrusions 47 are fitted into the light shielding hood 41 as shown in FIG. A notched groove 48 is formed as an engagement means. In addition, a clamping piece 49 is provided protruding from the inner surface of the continuous light hood 41 along the notch groove 48 so as to slightly compensate for the engagement force of the notch groove 48. By the way, the state of engagement between the notched groove 48 and the protrusion 47 is such that it can be rotated when the light shielding hood 41 is rotated by hand, and if necessary, another protrusion 47 can be engaged with the notched groove 48. Thus, the light shielding direction of the light shielding hood 41 can be changed.

(Embodiment 2) FIG. 7 shows another embodiment of the present invention, and this embodiment uses a cylindrical continuous light hood 50 that covers the lower peripheral surface of the transparent cover 40 as a light shielding device. The amount of protrusion of the second light-shielding hood 50 from the upper surface of the receiver main body 39 is made variable. For example, as shown in FIG. 17, if the illuminator B is a recessed type embedded in the ceiling 51, the light emitted from the illuminator B and exiting from the opening 52 will be directed to the edge of the opening 52. Even if this light is irradiated onto the light receiving section 52 of the receiver A, the light irradiated onto the upper part of the light receiving section 52 will reach only below the dotted line in the figure. It hardly reaches the element, and it will be strongly influenced by the light from the lighting equipment only when the light from the lighting equipment is irradiated onto the shaded area in FIG.

Therefore, in the case of such an embedded lighting fixture B, there is no need to block light with the light-shielding cover 41 even to the upper part of the light-transmitting cover 40 as shown in the embodiment of tjIJl. Therefore, as shown in FIG. 7, a light-shielding hood 50 is formed in a cylindrical shape to cover the lower peripheral edge of the light-transmitting cover 40, so as to shield the shaded area in FIG. 18 from light. Note that depending on the height of the receiver main body 39 or the mounting location of the receiver, the state in which the light from the illuminator is affected differs. Main body 3
A threaded groove is formed on the inner surface of the opening of 9, and the light-shielding hood 50 is screwed into the receiver body 39, and
The height of the light-shielding portion of the light-transmitting cover 40 by the light-shielding hood 50 is adjustable, and the light-shielding hood 50 shields the light-transmitting cover 4() as much as necessary. In addition, in order to attach the receiver main body 39 to the ceiling 51 by using an embedded type illuminator as lighting, as shown in FIG. Even if the height of the receiver is adjusted by screwing the receiver main body 3≦3 to the support base 53 and attaching it to the receiver base 53 without using the receiver, the same effect as in this embodiment can be obtained. is possible.

[Effect of the Invention 1] As described above, the present invention includes a transmitter having an operation switch and a plurality of receivers that receive wireless signals consisting of address data, control data for load control, etc. transmitted from the transmitter. In preparation, the three receivers whose addresses match upon receiving the time-division multiplexed wireless signal from the transmitter control the load based on the control data following the address data of the transmission code sent via the signal line. It has a dome-shaped translucent cover that is attached to the top surface of the receiver body and transmits signals from the transmitter that are incident from all directions. Since a light shielding device is attached to the light-transmitting cover, the light shielding device blocks light in the direction affected by light from lighting equipment, etc., so that the direction in which light is received by the receiver can be selected. This has the effect of reducing the influence of light from lighting equipment, thereby eliminating restrictions on where the receiver can be installed.

[Brief explanation of the drawing]

Figure 1 is a front view of essential parts of an embodiment of the present invention, Figure 2 (a)
is a perspective view of the light-shielding hood used in the above, (I)
is a side view, FIG. 3 is a sectional view of the main parts of the same, FIG. 4 is an explanatory diagram of the same as the above, FIG. 5 is a perspective view showing another light-shielding hood used in the same, and FIG. 6 is used in the same as the above. A front view of another transparent cover, FIG. 7 is a front view of main parts of another embodiment of the present invention, FIG. 8 is a schematic configuration diagram of a remote control device in which the same as above is used, and FIG. 9 is an explanation of the operation of the same as above. 10 is a schematic configuration diagram of a wireless system combined with a remote control device,
11 and 12 are explanatory diagrams of the same operation as above, FIG. 13 is a configuration diagram of a transmitter of the wireless system, FIG. 14 is a schematic configuration diagram of a remote control device combining the wireless system in which the same is used, and FIG. The figure is a schematic configuration diagram showing an application example of the same as above, Fig. 16 is an explanatory diagram of installation of a conventional example, Fig. 17 is an explanatory diagram of installation of another conventional example, and Fig. 18 is an explanation showing the influence of lighting equipment on the same as above. There is a diagram. 8 is the transmitter 3, 9 is the satellite receiver, 13 is the signal line,
39 is a receiver body, 40 is a transparent cover, and 41.50 is a light-shielding hood. Agent Patent Attorney Ishi 1) 议 739...Receiver body Fig. 1 4°°°゛Transparent part 7 41... Renko 7-t Fig. 2 Fig. 3 Fig. 4 Fig. 5 Figure 6 Figure 7, 40

Claims (4)

[Claims] (1) Equipped with a transmitter having an operation switch and a plurality of receivers that receive wireless signals consisting of address data, control data for load control, etc. transmitted from the transmitter,
A wireless system in which a receiver that receives a time-division multiplexed wireless signal from a transmitter and whose address matches controls the load based on the control data that follows the address data of the transmission code sent through the signal line. It is equipped with a dome-shaped transparent cover that is attached to the top surface of the receiver body and transmits the transmitter's signal that enters from all directions, and blocks light from the transmitter from a specific direction. A receiver for a wireless system, characterized in that the device is attached to the transparent cover. (2) As the light-shielding device, a light-shielding hood formed in a shape that blocks outgoing signals incident from a specific angle direction of the light-transmitting cover is used, and the lower periphery of the light-shielding hood is rotated in the circumferential direction of the light-transmitting cover. A receiver for a wireless system according to claim 1, wherein the receiver is freely attached to a receiver main body. (3) An engaging means is formed on the lower peripheral surface of the light-blocking hood to engage with the engaged means of the receiver body or the light-transmitting cover to restrict rotation of the light-shielding hood. A receiver for a wireless system according to claim 2. (4) A patent claim characterized in that the light shielding device uses a cylindrical light shielding hood that covers the lower peripheral surface of the transparent cover, and the amount of protrusion of the light shielding hood from the upper surface of the receiver main body is variable. A receiver for the wireless system according to item 1.