JPH02223232A - Wireless relay control system - Google Patents

Abstract

PURPOSE:To attain labor saving in a code registering work on each repeater and to surely guarantee a normal operating state by providing a means to perform code registration on the repeater by radio transmission from a transmitter and to set a transmission level or a reception level in the code registration less than a level in an operation. CONSTITUTION:The means 39 is provided to perform the code registration on the repeater 3 by the radio transmission from the transmitter 2 and to set the transmission level or the reception level in the code registration less than the level in the operation. Since the code registration on the repeater 3 is performed by the radio transmission from the transmitter 2, a work to register the same kind of code on the repeater 3 can be omitted by setting the various kinds of codes such as an equipment code or an addition code on the repeater 3. And when the code registration is performed by setting the transmission level or the reception level in the code registration less than the level in the operation, a relay operation can be surely guaranteed.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a method for disposing a repeater between a wireless transmitter and a receiver, receiving a transmitted signal at the repeater, and transmitting the received signal. It relates to a control method for a wireless relay system that expands the usable range between a transmitter and a receiver by retransmitting, and is used in fields such as wireless simple paging systems and home security systems. It is something that will be done.

[Prior Art] Conventionally, in this type of wireless relay system, a device code for identifying each device is registered in advance, and the device code is included in the transmission signal, so that the device on the transmitting side is A control method has been proposed in which relay is performed only when the code and the device code on the receiving side match.

The problem that this invention aims to solve! ] However, in order to realize relaying in a state where the position of the transmitter cannot be specified, virtually all relay devices need to have a function of relaying transmitter information. Therefore, if there is a transmitter or another repeater between the repeaters, multiple middle mtRs will perform near-simultaneous (relay) operations, causing collisions of wireless signals and communication failures. This often occurs.Secondly, set the r addition code and other codes for each repeater to determine whether relaying is necessary, and if the device codes match and the additional code determines that relaying is necessary. It is conceivable to use a control method that performs relay only when the signal is received.However, in this case, it is necessary to set various codes to each repeater, and each repeater is installed in a different location. Therefore, there is a problem in that the setting work requires a large amount of effort.Also, when you drive after completing the setting work, there is a possibility that the relay may be interrupted in a part of the relay route, and in that case, teeth,
There is a problem in that the setting work needs to be restarted from the beginning.

The present invention has been made in view of the above points, and its purpose is to provide a wireless relay control method that can save the labor of registering codes to each relay machine and reliably guarantee normal operating conditions. Our goal is to provide the following.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes a transmitter, at least one relay device, and a receiver, and includes a code transmitted from the transmitter and a code transmitted from the relay device. In a wireless relay system that performs a relay operation when the relationship with the registered code satisfies predetermined conditions, the code is registered to the relay machine by wireless transmission from the transmitter, and the transmission level or The present invention is characterized in that it includes means for setting the reception level lower than the level during driving.

Further, it is preferable that the relay device is equipped with a means for transmitting a signal for 7 code registration when receiving a signal for code registration, and furthermore, selectively prohibits code registration for relay devices that are not used as a relay route. It would be more preferable if each repeater is equipped with a means to Since this is done, by setting various codes such as device codes and additional codes in the transmitter, it is possible to omit the work of registering the same type of code in the repeater.

By setting the transmission level or reception level at the time of code registration lower than the level at the time of driving, it is guaranteed that if the code can be registered, the relay operation during driving can be performed reliably. Furthermore, when there are two or more repeaters, by sequentially transmitting wireless signals for code registration in a relay manner, code registration work for subsequent repeaters can also be omitted. Furthermore, if a transmitter is located between two relays, it is possible to form a specific relay route by selectively prohibiting code registration for relays that are not selected as a relay route. can.

[Embodiment] FIG. 2 is a schematic configuration diagram of a wireless relay system to which the present invention is applied. In the figure, 1a and 1b are transmitters in a fixed state, and 2a and 2b are transmitters in a moving state. 3ao and 31i+ are repeaters existing on the relay route between the transmitter 1a and the receiver 4. 3b...

3b is a relay machine existing on which relay route between the transmitter 1b and the receiver 4. The wireless signal from the transmitter 2a in the moving state is simultaneously received by the two medium-sized machines 3a, 3a. Wireless signals from other transmitters 1a or lb, 2b are transmitted to one repeater 3a+ or 3b, respectively.
, has been received.

FIG. 3 shows the internal circuit configuration of each repeater.

This repeater 3 includes an internal power supply circuit 31 that supplies power for driving, and a receiving antenna 32 that is necessary for receiving wireless signals.
a, a high frequency amplification unit 32 that amplifies the wireless signal;
A signal demodulation unit 33 extracts necessary information from a high-frequency amplified wireless signal, a relay control unit 34 processes information necessary for relay control, a carrier detection unit 35 detects the presence and strength of a wireless signal, A signal modulation unit 36 that converts a signal into a high frequency signal, a high frequency amplification unit 37 that amplifies this high frequency signal to a level suitable for transmission, a transmission antenna control unit 38 that performs control to send the amplified high frequency signal to the antenna, It consists of transmitting antennas 38a and 38b for emitting high-frequency signals as radio waves, and three operating state setting sections for setting various operating conditions. Operating state setting section 3
9 is added with a code setting switch 39a, a mode setting switch 39b, and a code registrability setting switch 39c. The code setting switch 39a is a switch for setting a position code and a device code indicating the distance relationship with the receiver. The three mode setting switches b are switches for switching between the driving mode and the registration mode.

Since the code registrability setting switch 39c is not directly related to the gist of the present invention, a description thereof will be omitted. Note that the relay control unit 34 includes a storage device for temporarily storing received signals and a clock device for measuring elapsed time. On the other hand, the transmitter 2 has switches 21 and 22 depending on the purpose, and when the switch 21 or 22 is pressed, a wireless signal in a predetermined format is transmitted.

FIG. 1 is a flowchart showing the control operation of a wireless repeater that processes code registration and sensitivity adjustment almost simultaneously. In the same figure, when the internal power supply circuit 31 is powered on in #10, it is determined in #20 whether the operating mode is the driving mode or the code registration mode. The operating mode is set by mode setting switch 39b. If it is determined in #20 that the operation mode is the code registration mode, sensitivity adjustment is performed in #30 to lower the sensitivity. Further, if it is determined in #20 that the operation mode is the driving mode, sensitivity is restored in #40 to return the sensitivity to the normal level. The process moves from #30 or #40 to #50 to perform reception processing, and in #60 it is determined whether there is a received signal. #60
If it is determined that there is no received signal, the process returns to #20 and the operation mode is determined. If it is determined in #60 that there is a received signal, the operation mode is determined in #70.

If it is determined in #70 that the operation mode is the code registration mode, code registration processing is performed in #80. Specifically, the device code and additional code included in the received signal are registered. Further, if it is determined in #70 that the operation mode is the driving mode, it is determined whether relaying is necessary or not according to the already registered device code and additional code. #
The process moves from #80 or #90 to #100 to perform transmission processing.

When transitioning from #80 to #100, the received device code or additional code is retransmitted as is or with necessary processing. Furthermore, when transitioning from #90 to #100, transmission is performed only when relaying is required, and transmission is omitted when relaying is not required.

By controlling in this way, it is possible to set and verify the usable range of the repeater at the same time as registering the code. In other words, the sensitivity is set low when registering the code, so
If the code can be registered in this state, the sensitivity is set high during operation, thereby ensuring that the relay operation is performed reliably. In addition, when registering the code, the relay device 3 retransmits the received device code and additional code as is or with necessary processing.
Code registration can be carried out in a relay type in a plurality of repeaters 3, which greatly reduces the labor involved in code registration, and also prevents mistakes in code registration due to manual setting.

Although this embodiment shows an example in which the reception sensitivity is lowered in the code registration mode, the wireless transmission level may be lowered, or both may be used in combination.

Also, as mentioned above, when registering codes using wireless signals, only the repeater near the receiver is set to registration mode, and the repeater far from the receiver is in operation. If the mode is set, code registration will not be performed for repeaters that you do not want to select as a relay route, so you can easily set a specific relay route.

Although the explanation in Figure 1 is based on the assumption that the repeater is controlled by software, it goes without saying that the repeater may be controlled by hardware, and wireless signals are limited to radio waves only. For example, it may be an optical signal (including infrared rays), a sound wave signal (including ultrasonic waves), or a line of magnetic force.

[Effects of the Invention] According to the present invention, by registering a code to a repeater using a wireless signal from a transmitter, the labor required for code registration work can be greatly reduced, and the transmission level or reception level at the time of code registration can be significantly reduced. Setting the level lower than the level during operation has the effect of reliably guaranteeing relay operation during operation after code registration.

Furthermore, if codes are registered in subsequent repeaters in a relay manner using radio signals from previous repeaters, the labor required for code registration work can be further reduced significantly. In this case, if each relay device is provided with a means for selectively prohibiting code registration to a relay device that is not selected as a relay route, a specific relay route can be easily formed.

[Brief Description of the Drawings] Fig. 1 is a flowchart for explaining the operation of the present invention, Fig. 2 is a schematic configuration diagram of a wireless relay system to which the present invention is applied, and Fig. 3 is the interior of a repeater used in the same. FIG. 2 is a block diagram showing the configuration. 1a, 1b, 2a, 2b are transmitters, 3a0, 3a
1, 3bo, and 3b are repeaters, and 4 is a receiver.

Claims (3)

[Claims] (1) Wireless that includes a transmitter, at least one repeater, and a receiver, and performs a relay operation when the relationship between the code transmitted from the transmitter and the code registered in the repeater satisfies predetermined conditions. In the relay system, the code is registered to the relay machine by wireless transmission from the transmitter, and
A wireless relay control system characterized by comprising means for setting a transmission level or reception level at the time of code registration to be lower than the level at the time of driving. (2) Wireless that includes a transmitter, at least one repeater, and a receiver, and performs a relay operation when the relationship between the code transmitted from the transmitter and the code registered in the repeater satisfies predetermined conditions. The relay system is provided with means for registering a code in the repeater by wireless transmission from a transmitter, and the repeater is provided with means for transmitting a signal for code registration when receiving a signal for code registration. A wireless relay control method featuring: (3) Claim 2 comprising at least two repeaters, wherein each repeater is provided with means for selectively prohibiting code registration for a repeater that is not selected as a relay route.
Wireless relay control method described.