JPH10224874A - Remote control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize collision contention control of the CSMA/CD system by allowing a main equipment to transmit a starting pulse and allowing a remote controller to synchronize the phase of a sub carrier during receiving the start pulse. SOLUTION: The main equipment 1 and the remote controller 1b possesses transmission data and at the time of starting transmission, collision contention control parts 1a25 and 1b25 compare reception data obtained by analyzing a signal wave, which is obtained by filtering the sub-carrier by radio signal receiving parts 1a22 and 1b22, by reception pulse analyzing parts 1a24 and 1b24 and transmission data transferred to transmission pulse generation parts 1a23 and 1b23 from main processing parts 1a1 and 1b1. Then as transmission data and reception data are different from each other at the time of confirming collision contention, the instruction of stopping its own transmission is sent to the part 1a23 from the part 1a25 to stop transmission. The collision contention control of the CSMA/CD system is rightly realized in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of remote controllers and devices to be controlled by the remote controller, and a signal transmission between the remote controllers and the device to be controlled, which can realize collision conflict control by the CSMA / CD system when performing wireless communication. The present invention relates to a remote control system including a main device that exchanges data.

[0002]

2. Description of the Related Art A remote control system which is currently widely used realizes only one-way communication from a remote control to a main device between the remote control and a main device which exchanges signals with the remote control. However, in order to increase the reliability of remote control operation, it is necessary to realize two-way communication.

There are roughly two types of control methods for realizing wireless two-way communication. One is polling / selecting method, the other is CSMA / CD
It is a method.

[0006] The polling selecting method will be described with reference to FIG. The main device 11a always has a transmission right, and can transmit arbitrarily when transmission data occurs. Further, the main device 11a periodically transmits a signal 11d for confirming the presence or absence of transmission data to the remote controller 11b, and when the remote controller 11b holds the transmission data (11c), transmits the data after the inquiry (11e). ). When there are a plurality of remote controllers, the main unit 11a inquires each remote controller 11b in order, and each remote controller 11b can transmit data only at the timing of inquiry to itself. As a result, it is possible to avoid signal collision between the main device 11a and each remote controller 11b and to transmit and receive data.

The CSMA / CD system will be described with reference to FIG. In the CSMA / CD system, the main unit 12a,
The transmission can be started at any time as long as the remote controller 12b is at the transmission timing. For example, when the remote controller 12b transmits data (1110101), if there is no data transmission from another remote controller, the transmitted data (1110101) is received at the same time as it is, so that the transmission data (1110101) and the reception data (1110101) There is no difference between them. However, when a plurality of remote controllers 1 and 2 each hold transmission data 12c and start transmission at the same time, for example, the remote controller 1 transmits data (1110101) and the remote controller 2 transmits data (1010101).
101) and the first bit is the remote control
Both 1 and 2 receive “1”, and there is no difference between the transmitted data and the received data. , The remote controller 1 makes a difference between the transmission data and the reception data, and the remote controller 2 makes no difference. Therefore, the remote controller 1 recognizes that the collision has been lost, and stops transmission. Since the remote control 2 has no recognition of losing, the transmission is continued as it is. In such a winning system, if the data transmitted by itself is different from the received data, the transmission of the other terminal is prioritized, and the transmission of the terminal itself is stopped (12e). Send (1
Perform 2f). In this way, collision conflict control between the main device and a plurality of remote controllers is performed.

[0006]

However, in the first polling / selecting method, since the remote controller cannot transmit without waiting for an inquiry from the main unit even if the remote controller owns the transmission data, the remote controller operates the remote controller. And the actual control has a time delay. this is,
There is a problem that as the number of remote controllers increases, a delay occurs.

On the other hand, in the second CSMA / CD system, the remote controller can transmit at an arbitrary timing if there is transmission data. However, in the case of a radio signal, the transmission data is superimposed on the subcarrier, so when the phase shift between the subcarriers of both remote controllers is half the wavelength of the subcarrier, the transmission timing of the transmission data is the same between the remote controllers, At the stage where it is not yet determined which one has won, for example, at the stage where both remote controllers are transmitting "1", the data received by each remote controller cancels each other's signal, so "0" , And a difference occurs, so that both sides recognize that they have lost the collision. Thus, a phenomenon occurs in which collision control cannot be performed.

Accordingly, an object of the present invention is to provide a remote control system which realizes collision control by the CSMA / CD system by synchronizing phases.

[0009]

In order to achieve this object, a remote control system according to the present invention exchanges signals between a remote control capable of wirelessly transmitting and receiving signals and a device to be controlled by the remote control. Consists of a main unit.

The main unit includes a main processing unit for communicating with a device (system) to be controlled by the remote controller, and a wireless communication control processing unit for transmitting and receiving a wireless signal. A radio signal receiving unit that receives a radio signal and extracts a signal wave by filtering a subcarrier, analyzes a signal extracted by the radio signal receiving unit, and passes a received data to a main processing unit. A transmission pulse generator that transmits the transmission data passed from the transmitter to the radio signal transmitter on the subcarrier, a radio signal transmitter that transmits the transmission signal passed from the transmission pulse generator, Compares received data, and in the event of collision contention, a collision contention control unit that stops its own transmission. Composed of the start pulse transmission control section for instructing the transmission pulse generator.

The remote control includes a main processing unit for receiving a remote control input, and a wireless communication control processing unit for transmitting and receiving a wireless signal. The wireless communication control processing unit receives a wireless signal from a main device and filters a subcarrier. A wireless signal receiving unit that extracts a signal wave by analyzing a signal extracted by the wireless signal receiving unit, a receiving pulse analyzing unit that passes received data to a main processing unit, and a subcarrier wave that transmits transmission data passed from the main processing unit. A transmission pulse generation unit that passes the signal to the phase synchronization control unit and a transmission signal that is passed from the transmission pulse generation unit to the subcarrier, and synchronizes the phase of the subcarrier during reception of the start pulse transmitted from the main unit. Performing, a phase synchronization control unit to pass to the radio signal transmission unit, a radio signal transmission unit to transmit the transmission signal passed from the phase synchronization control unit,
When transmitting, it compares the transmitted data with the received data,
It comprises a collision contention control unit that stops its own transmission at the time of collision contention.

[0012]

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. FIG.
1 shows an example of a functional configuration of a main device and a remote controller constituting the remote control system according to the first embodiment of the present invention. FIG. 2 shows the transmission timing of the start pulse transmitted from the main device. FIG. 3 shows an example of collision conflict control between the main device and the remote controller.

A main unit 1a shown in FIG. 1 is a main processing unit 1a1 for communicating with a device (system) to be controlled by a remote controller.
And a wireless communication control processor 1a2 for transmitting and receiving wireless signals
The wireless communication control processor 1a2 includes a wireless signal transmitter 1a21, a wireless signal receiver 1a22, a transmission pulse generator 1a23, a reception pulse analyzer 1a24, a collision conflict controller 1a25, a start pulse transmission controller. 1a2
6 is provided.

The remote controller shown in FIG. 1 includes a main processing unit 1b1 for receiving a remote control input, a radio communication control processing unit 1b2 for transmitting and receiving radio signals, and a radio communication control processing unit 1b2 for transmitting and receiving the radio signals. Signal transmission unit 1b
21, radio signal receiving section 1b22, transmission pulse generating section 1b
23, reception pulse analysis unit 1b24, collision contention control unit 1b
25, a phase synchronization control unit 1b26.

Hereinafter, the collision conflict control between the main device 1a and the remote controller 1b will be described.

As shown in FIG. 2, the start pulse 21 is periodically transmitted from the main unit 1a. If the transmission data exists in the main device 1a or the remote controller 1b, the transmission time is 22 after the end of the data transmission, and 23 after a certain period of time as the pause time.
To send a start pulse. If there is no transmission data in the main device 1a or the remote controller 1b, after a start pulse transmission 21 and after a lapse of a predetermined time as a pause time, 24
To send a start pulse. Actually, in the main device 1a, when receiving the data transmission end notification from the reception pulse analyzing unit 1a24, or when there is no data reception after transmitting the start pulse, the start pulse transmission control unit 1a
At 26, the pause time is measured, and after a lapse of a predetermined time, the transmission pulse generation unit 1a23 is instructed to transmit a start pulse.

In the remote controller 1b, when transmission data is generated, the transmission pulse generation unit 1b23 operates the main processing unit 1b
The transmission data passed from 1 is put on the subcarrier and passed to the phase synchronization control unit 1b26. In the phase synchronization control unit 1b26,
The phase of the subcarrier of its own is synchronized with the phase of the subcarrier of the start pulse received from the main device 1a in the radio signal receiving section 1b22 during reception of the start pulse. Then, at the transmission data transmission timing, the subcarrier with the transmission data and phase synchronization is passed to the radio signal transmission unit 1b21, and the radio signal is transmitted from the radio signal transmission unit 1b21 to the main device 1a.

When the main unit 1a and the remote controller 1b hold transmission data and start transmission, the radio signal receiving unit 1
The signal waves obtained by filtering the subcarriers at a22 and 1b22 are received by the received pulse analyzers 1a24 and 1b2.
4 and the main processing unit 1a
The transmission data passed from the transmission pulse generators 1a1 and 1b1 to the transmission pulse generators 1a23 and 1b23
Compared at 25, as shown in FIG. 3A, at the time of collision detection 31 (when the data transmitted by the main unit 1a is "1", the data transmitted by the remote controller 1b indicates "0") Since the transmission data and the reception data are different from each other, the main device 1a sends an instruction from the collision contention control unit 1a25 to the transmission pulse generation unit 1a23 to stop its transmission,
Stop sending. In this way, main device 1a transmits a start pulse, and during reception of the start pulse, remote controller 1b synchronizes the phases of the sub-carriers, whereby C
The SMA / CD type collision conflict control can be correctly realized.

However, as shown in FIG. 3B, when a plurality of remote controllers exchange signals with one main unit, the plurality of remote controllers simultaneously hold transmission data and start pulses transmitted from the main unit. When transmission of transmission data is started after reception, the remote controllers cannot recognize the result of the collision conflict and continue transmission even if the collision is lost, but a phenomenon occurs that is not reflected on the control target device.

Therefore, an embodiment of the present invention will be described.

(Embodiment 2) An embodiment 2 of the present invention will be described with reference to FIGS.

FIG. 3 shows an example of collision conflict control between the main unit and the remote controller, and FIG. 4 shows an example of a functional configuration of the main unit according to claim 2 of the present invention.

As shown in FIG. 4, when the main unit does not transmit, the main unit transmits the radio signal received from the remote controller by radio signal receiving unit 4a22 as it is to radio signal transmitting unit 4a21.
Is provided with a reception signal turning-over section 4a27 to be passed to the receiver. FIG.
As shown in (b), when two remote controllers 1 and 2 exchange signals with one main device 1a, the two remote controllers 1 and 2
A description will be given of collision conflict control when the main devices 1a and 1a simultaneously hold transmission data and start data transmission at the same time.

After receiving the start pulse transmitted from the main unit 1a, the two remote controllers 1 and 2 simultaneously start transmitting the transmission data at the data transmission timing 32. Main device 1
a also starts transmission of transmission data at the same timing. The collision conflict control unit 4a25 of the main device 1a stops the transmission at the timing 33 because the transmission data and the reception data are different. Thereafter, the remote controllers 1 and 2 continue transmitting. While the main apparatus 1a is not transmitting itself, it transmits the signal from the remote controller received by the wireless signal receiving section 4a22 as it is from the wireless signal transmitting section 4a21 via the received signal folding section 4a27. At this time, the signal received by the wireless signal receiving unit 4a22 of the main device 1a is a signal obtained by superimposing the signals of the remote controllers 1 and 2. Therefore, when the signals of remote control 1 and remote control 2 are superimposed,
The signal transmitted from the main unit is the same as the signal transmitted by the remote controller 2. Since the data transmitted by the remote controller 1 is different from the data received by the remote controller 1, the remote controller 1 recognizes that the collision has been lost, and stops the transmission at the timing 34. As a result, remote control 2
Survive and continue data transmission.

In this way, even when a plurality of remote controllers perform wireless communication with one main apparatus, the main apparatus returns a received signal as it is and transmits the signal, thereby achieving CSMA.
/ CD type collision competition control becomes possible.

Third Embodiment A third embodiment of the present invention will be described with reference to FIGS.

FIG. 5 shows an example of the configuration of a remote control system to which claim 3 of the present invention is applied. FIG. 6 shows an example of a functional configuration of a main device according to a third aspect of the present invention.

This embodiment will be described in the case where the main device 5a is connected to the communication network 5d and the device to be controlled by the remote controller 5b is the lighting device 5c connected to the same communication network 5d.

The main device installed in a certain space and the remote controller used in the space have a limit in the reach of the radio signal, and when a 12 m square room such as a living room of an office building is assumed, one unit is provided. It is conceivable that it is impossible to transmit and receive a remote control signal from the corner of the room using only the main device. Therefore, in order to extend the usable area of the remote controller, a plurality of main devices having the same function are provided in one space, as shown in FIG.
Then, two units (5a1, 5a2) are installed, and both are connected to the communication network 5d.

Thus, the remote controller operates the main unit 1 (5a
1) and the main device 2 (5a2) can be used within the radio signal reach range, and the control target device can be controlled.

However, the main device 1 (5a1) and the main device 2
When the remote control signal transmission / reception range covered by (5a2) overlaps, the wireless signals transmitted from the remote control 5b are received by the main device 1 (5a1) and the main device 2 (5a2) at the same time. Then, the same control content is executed for the same control target device 5c via the communication network 5d. In the control contents of the lighting device 5c, the ON / OFF of the power supply and the like are turned ON by using the toggle control.
However, even if it is OFF, the control message on the communication network may use the same code meaning power control. Even if the wireless signal transmitted from the remote controller 5b is powered on,
When a code indicating power control is transmitted from each of the main devices (5a1, 5a2), the lighting device 5c, which is a device to be controlled, is once turned on by the control of the main device 1 (5a1), and thereafter, the main device 2 It is assumed that the switch is turned off by the control from (5a2).

Therefore, the main unit is provided with a control content confirmation unit 6a11 for confirming the content of a message on the communication network. When receiving the wireless signal from the remote controller 5b, the control content confirmation unit 6a11 monitors the message on the communication network until the message itself is transmitted on the communication network 5d. If there is a message transmitted from another main unit, the content is confirmed, and what kind of control is to be performed on the control target device from which remote controller is to be grasped. If the received wireless signal indicates the same control content with the same remote controller, transmission of the message corresponding to the signal to the communication network is stopped.

In this way, it is possible to prevent a plurality of main units from performing control of the same content from a plurality of main units to a device to be controlled by the remote controller while expanding the usable range of the remote controller.

However, providing a control content confirmation unit in each main unit and monitoring messages on the communication network can be said to significantly increase the load on the main unit.

Therefore, the load on the main unit is reduced.
The embodiment of the invention shown in FIG.

(Embodiment 4) An embodiment 4 of the present invention will be described with reference to FIGS.

FIG. 7 shows an example of the configuration of a remote control system to which claim 4 of the present invention is applied. FIG. 8 shows an example of the functional configuration of the main device according to claim 4 of the present invention.

This embodiment will be described in the case where the main units (7a1, 7a2) are connected to the communication network 7d and the control target devices of the remote controllers (7b1, 7b2) are the lighting devices 7c connected to the same communication network. .

In order to expand the usable area of the remote controller, a plurality of main units are installed in one space, and two main units are installed in FIG.
7a2), the main device 1 (7a1) is connected to the communication network to be a parent main device, and the other main device (7a2) is not connected to the communication network but is a child main device.

Main device 1 (7a1, 8a) which is the parent main device
Is a wireless signal transmission unit A (8a2) for exchanging wireless signals between main units in addition to the functional configuration shown in the second embodiment.
8) a wireless signal receiving unit A (8a29); The main device 2 (7a2, 8b), which is a child main device, transmits a radio signal to and transmits a radio signal between the main devices.
8) The wireless signal receiving unit A (8b29) synchronizes the phase of the subcarrier with the start pulse transmitted from the master device and transmits the wireless signal passed from the wireless signal receiving unit A (8b29) to the remote controller Wireless signal transmitting unit (8b2
1) A wireless signal receiving unit (8b22) that receives a wireless signal from a remote controller and passes it to a wireless signal transmitting unit A (8b28).

Main device 1 (7a1, 8a) which is the parent main device
Are transmitted from the main device 2 (7a2, 8b), which is a child main device, with phase synchronization. Therefore, the remote controllers in the spaces that perform wireless communication with the parent device (7a1, 8a) and the child device (7a2, 8b) can start transmission at the same transmission timing. Since radio signals are exchanged between the parent device and the child device, the radio signals from the remote controller received by the parent devices (7a1, 8a) and the child devices (7a2, 8b)
Wireless signals received from the remote controller can be subjected to collision conflict control with each other.

Further, in a case where both the main unit 1 (7a1, 8a) and the main unit 2 (7a2, 8b) receive a signal from one remote controller, the control to the control target device 7c is duplicated. In the problem of item 3, the main device that can be controlled by the control target device 7c is the main device 1 that is the parent main device.
Since there is only (7a1, 8a), the phenomenon that the same control is repeated twice does not occur.

In this way, it is possible to prevent a plurality of main units from performing control of the same content from a plurality of main units to a device to be controlled by the remote controller while expanding the usable range of the remote controller. Further, since collision conflict control between a plurality of remote controllers according to the CSMA / CD method can be realized, a plurality of remote controllers can be used simultaneously.

(Fifth Embodiment) A fifth embodiment of the present invention will be described with reference to FIGS.

FIG. 9 shows an example of the configuration of a remote control system to which claim 5 of the present invention is applied. FIG. 10 shows an example of the functional configuration of the main device according to claim 5 of the present invention.

In the case where the main unit is connected to the communication network 9d, and the control target device of the remote controller is a lighting device connected to the same communication network, and the remote control and the control target device are respectively plural, this embodiment is used. explain.

The main device includes a remote control device correspondence storage section (10a12) for storing the correspondence between the remote control and the control target device, and the contents thereof can be rewritten by wireless communication.

Thus, when only the remote controller 1 (9b1) and the lighting device 1 (9c1), which is the device to be controlled by the remote controller 1, are configured as a remote control system, the remote controller 2 (9b2) and the device to be controlled by the remote controller 2 When the lighting device 2 (9c2) is incorporated in the system, an adapter (9e) for transmitting a wireless signal from a personal computer (9e1) or the like.
2) via the storage unit (10a)
By changing the setting contents of 12), the system can be easily upgraded. The remote controller 1 (9b1), the lighting device 1 (9c1) which is a device to be controlled by the remote controller 1, and the remote controller 2
When the combination of (9b2) and the lighting device 2 (9c2) to be controlled by the remote controller 2 is changed, the system can be easily changed by changing the setting contents of the remote control device corresponding storage unit (10a12) in the same manner. Changes can be made.

[0049]

As described above, according to the present invention, the following effects can be obtained.

(1) In the remote control system according to the first aspect, the main unit transmits a start pulse, and the remote control synchronizes the phases of the subcarriers during reception of the start pulse, whereby a collision conflict of the CSMA / CD system occurs. Control can be realized.

(2) In the remote control system according to the second aspect, even when a plurality of remote controllers perform wireless communication with one main apparatus, the main apparatus returns a received signal as it is and transmits the signal, thereby achieving CSMA. / CD type collision competition control becomes possible.

(3) In the remote control system according to the third aspect, it is possible to prevent the control of the same content from being performed by a plurality of main units on the control target device of the remote controller while expanding the usable range of the remote controller. Become.

(4) In the remote control system according to the fourth aspect, it is possible to prevent the control of the same content from being performed by a plurality of main devices on the control target device of the remote control while expanding the usable range of the remote control. Become. Further, since collision conflict control between a plurality of remote controllers according to the CSMA / CD method can be realized, a plurality of remote controllers can be used simultaneously.

(5) In the remote control system according to the fifth aspect, it is possible to easily cope with a system upgrade such as a system change or addition of a device to be controlled.

[Brief description of the drawings]

FIG. 1 is an example of a functional configuration of a main device and a remote controller that constitute a remote control system according to an embodiment of the present invention.

FIG. 2 shows a transmission timing of a start pulse transmitted from a main device.

FIG. 3 shows an example of collision conflict control between a main device and a remote controller.

FIG. 4 is an example of a functional configuration of a main device according to the second embodiment of the present invention;

FIG. 5 shows an example of the configuration of a remote control system according to the embodiment shown in claim 3 of the present invention.

FIG. 6 is an example of a functional configuration of a main device according to the third embodiment of the present invention.

FIG. 7 shows an example of the configuration of a remote control system according to the embodiment shown in claim 4 of the present invention.

FIG. 8 is an example of a functional configuration of a main device according to the embodiment shown in claim 4 of the present invention.

FIG. 9 shows an example of the configuration of a remote control system according to the embodiment shown in claim 5 of the present invention.

FIG. 10 shows an example of a functional configuration of a main device according to an embodiment shown in claim 5 of the present invention.

FIG. 11 shows an example of a remote control system using a conventional polling / selecting method.

FIG. 12 shows an example of a conventional remote control system using the CSMA / CD method.

[Explanation of symbols]

 1a Main device 1b Remote controller 1a1, 1b1 Main processing unit 1a2, 1b2 Wireless communication control processing unit 1a21, 1b21 Wireless signal transmission unit 1a22, 1b22 Wireless signal reception unit 1a23, 1b23 Transmission pulse generation unit 1a24, 1b24 Reception pulse analysis unit 1a25, 1b25 Collision competition control unit 1a26 Start pulse transmission control unit 1b26 Phase synchronization control unit

Claims (5)

[Claims] 1. A remote control system comprising: a remote controller capable of wirelessly transmitting and receiving signals; and a main unit for exchanging signals between a device to be controlled by the remote controller and the remote controller. A main processing unit that performs communication with the control target device of the remote control, and a wireless communication control processing unit that performs transmission and reception of a wireless signal, the wireless communication control processing unit receives a wireless signal from the remote control,
A radio signal receiving unit that extracts a signal wave by filtering a subcarrier, analyzes a signal extracted by the wireless signal receiving unit, and a reception pulse analysis unit that passes received data to the main processing unit. A transmission pulse generator for transmitting the transmitted transmission data on a subcarrier to a radio signal transmitter, a radio signal transmitter for transmitting the transmission signal passed from the transmission pulse generator, and a transmission data and a reception data when the transmission itself is performed. A collision contention control unit that stops its own transmission in the event of a collision contention, and a start pulse transmission control unit that instructs the transmission pulse generation unit to transmit a start pulse after a lapse of a certain period of time after the communication ends. The remote controller includes a main processing unit that receives a remote control input, a wireless communication control processing unit that transmits and receives a wireless signal, A line communication control processing unit that receives a wireless signal from the main device, extracts a signal wave by filtering a subcarrier, analyzes a signal extracted by the wireless signal receiving unit, A receiving pulse analyzer that passes the signal to the main processor,
A transmission pulse generation unit that passes the transmission data passed from the main processing unit onto a subcarrier and passes it to a phase synchronization control unit, and a transmission signal that is passed on the subcarrier from the transmission pulse generation unit and is transmitted from the main device. During the reception of the start pulse, the phase synchronization of the subcarriers is synchronized, and the phase synchronization control unit passes the transmission signal to the radio signal transmission unit. The radio signal transmission unit transmits the transmission signal passed from the phase synchronization control unit. Has a collision contention control unit that compares transmission data and reception data at the time of transmission and cancels its own transmission at the time of collision contention,
A remote control system, wherein the remote control always achieves CSMA / CD collision competition control by always synchronizing with the phase of a subcarrier of the main device. 2. A remote control system comprising: a plurality of remote controllers capable of wirelessly transmitting and receiving signals; and a main device for exchanging signals between a device to be controlled by the remote controller and the remote controller. A main processing unit that performs communication with the control target device of the remote control, and a wireless communication control processing unit that performs transmission and reception of a wireless signal, the wireless communication control processing unit receives a wireless signal from the remote control, A radio signal receiving unit that extracts a signal wave by filtering a subcarrier, analyzes a signal extracted by the wireless signal receiving unit, and a reception pulse analysis unit that passes received data to the main processing unit. A transmission pulse generator for transmitting the transmitted transmission data on a subcarrier to a radio signal transmitter, and transmitting a transmission signal passed from the transmission pulse generator. The line signal transmission unit, when transmitting itself, compares the transmission data with the reception data, and in the case of collision contention, a collision contention control unit that stops its own transmission, when a certain time has elapsed after the communication has ended, the start pulse transmission is performed. A start pulse transmission control unit that instructs a transmission pulse generation unit, and a radio signal received from a remote controller in the radio signal reception unit when the radio signal reception unit does not transmit, has a reception signal folding unit that passes the radio signal transmission unit as it is, Even when the plurality of remote controllers are located at a position where they cannot receive each other's transmission signals, the other remote controller can receive the radio signal transmitted by one of the remote controllers via the main device, and the CSMA can be performed between the remote controllers. A remote control system for realizing collision conflict control of / CD. 3. A remote controller capable of wirelessly transmitting and receiving signals, and a plurality of main units separated in a predetermined space for exchanging signals between a device to be controlled by the remote controller and the remote controller The main device comprises: a main processing unit that communicates with a device to be controlled by the remote control; and a wireless communication control processing unit that transmits and receives wireless signals. The unit receives a radio signal from a remote control, a radio signal receiving unit that extracts a signal wave by filtering a subcarrier, analyzes a signal extracted in the wireless signal receiving unit, and transmits received data to the main processing unit. A receiving pulse analyzing unit, a transmitting pulse generating unit that transfers transmission data passed from the main processing unit to a radio signal transmitting unit on a subcarrier, and the transmitting pulse A radio signal transmitting unit that transmits the transmission signal passed from the generating unit, compares a transmission data with a reception data when transmitting by itself, and a collision conflict control unit that stops transmission by itself when a collision conflict occurs, and terminates communication. After a predetermined time has passed, the main processing unit has a start pulse transmission control unit that instructs the transmission pulse generation unit to transmit a start pulse, and the main processing unit confirms the control content from another main device to the control target device. When a plurality of main units simultaneously receive signals from the remote controller, the remote controller can be used in a certain space while confirming each other so that control to the control target device does not overlap. A remote control system characterized by expanding the area. 4. A plurality of remote controllers capable of wirelessly transmitting and receiving signals, and a plurality of remote controllers installed in a predetermined space for exchanging signals between a device to be controlled by the remote controller and the remote controller. In a remote control system including one main device, one of the plurality of main devices is connected to a device to be controlled by the remote control as a parent main device, and the other main device is a child main device. As a system not connected to the control target device of the remote control, the parent device, a main processing unit that performs communication with the control target device of the remote control, a wireless communication control processing unit that transmits and receives wireless signals, The wireless communication control processing unit receives a wireless signal from the remote control, a wireless signal receiving unit that extracts a signal wave by filtering a sub-carrier, the wireless signal receiving unit And analyze the extracted signal,
A reception pulse analysis unit that passes reception data to the main processing unit, a transmission pulse generation unit that passes transmission data passed from the main processing unit on a subcarrier to a radio signal transmission unit, and a transmission that passes from the transmission pulse generation unit A radio signal transmitting unit that transmits a signal, a self-transmitting unit, compares transmission data and received data, and in the event of a collision contention, a collision contention control unit that stops its own transmission. A pulse for instructing the transmission pulse generator to transmit a pulse .
Start pulse transmission control unit and transmission of radio signals between main units
And a wireless signal receiving unit A for performing wireless communication.
Communication unit A, wherein the child device is a wireless communication control processing unit.
And the radio communication control processing unit has a phase of the subcarrier.
Exchanges wireless signals between main units by synchronizing
The slave side wireless signal transmitting unit A and the wireless signal receiving unit A for
Receiving a radio signal from a remote controller, and
A wireless signal receiving unit to be passed to the transmitting unit A;
The wireless signal passed from the signal receiver A to the remote controller
And realizes a collision conflict control by a CSMA / CD method between a plurality of remote controllers in a space,
A remote control system characterized by expanding a remote control usable area. 5. A remote control system comprising: a plurality of remote controllers; a plurality of control target devices to be controlled by the remote controllers; and a main device for exchanging signals between the remote control and the control target devices. The apparatus according to claim 1, wherein the main device includes a remote control device corresponding storage unit that stores a correspondence relationship between the remote control and the control target device, and rewrites a setting content of the remote control device corresponding storage unit using wireless communication. The remote control system according to item 1, 2, 3, or 4.