JPS648880B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a wireless monitoring device capable of wirelessly monitoring the status of indoor sensors and load equipment.

[Background technology]

Conventionally, time-division multiplex remote monitoring systems using dedicated two-wire signal lines have been widely used to centrally monitor the status of security sensors, gas sensors, fire sensors, etc. placed indoors. However, such systems need to monitor many locations such as windows, entrances, bathrooms, and kitchens, and if you try to wire signal lines to all of these locations in an existing house, the wiring work will be required. effort, days,
The cost was extremely high, and the wiring of the signal lines was exposed on the surface, resulting in a poor appearance.

[Purpose of the invention]

The present invention has been made in view of the above points, and provides a wireless monitor device that enables intensive monitoring of the status of various indoor sensors and load devices using a multi-channel wireless transmitter/receiver. The purpose is to provide the following.

[Disclosure of the invention]

Hereinafter, the configuration of the present invention will be described with reference to illustrated embodiments. FIG. 1 is a block circuit diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the same operation. In Fig. 1, 1 ₁ to 1 _j are wireless slave units, and MOSICs connected to crystal oscillator 2.
The oscillation circuit section 3 includes an oscillation circuit section 3, and a high frequency transmitter section 4 connected to the output of the oscillation circuit section 3 to transmit high frequency waves. An antenna 5 is connected to the high frequency transmitter 4 . Reference numeral 6 denotes a normally open switch that turns on and off the power supply to the oscillation circuit section 3 and the high frequency transmitter section 4. The oscillation circuit section 3 has a scanning output section 3a having scanning output terminal sections S ₁ , S ₂ , . . . , _So , and a frequency setting section 3 b having frequency selection terminals ₁ , ₂ , . . . , _n . The scanning output section 3a consists of, for example, a ring counter, etc., and when the switch 6 is turned on and the power is turned on,
First, the scanning output terminal S ₁ becomes H level, and then the scanning output terminals S ₂ , S ₃ , ..., _So sequentially become H level, and any one of the scanning output terminals S ₁ to _So One terminal becomes H level, all the other terminals become L level, and the terminals at H level are sequentially switched. The frequency setting section 3b is composed of a frequency dividing circuit in which, for example, flip-flops are connected in cascade in multiple stages, and outputs a frequency obtained by dividing the reference oscillation frequency determined by the crystal oscillator 2.
The frequency division ratio can be changed depending on which terminal among the plurality of frequency selection terminals ₁ to _n is pulled up to H level. The scanning output terminals S ₁ to _{S o} are arbitrary frequency selection terminals as appropriate.
₁ to _n , and the connection pattern is set to be different depending on each wireless slave device 1 ₁ to 1 _j . In this embodiment, five terminals ₁ to ₅ out of m frequency selection terminals ₁ to _n are used, and the first wireless slave device ₁₁ is illustrated in FIG. The scanning output terminals S ₁ , S ₂ , S ₃ , S ₄ , ..., S _o-1 , S _o are connected to the frequency selection terminals ₅ , ₃ , ₄ , ₂ , ..., ₅ , _1, respectively. Therefore, the signal output from the frequency setting section 3b in the oscillation circuit section 3 is transmitted to each frequency selection terminal ₅ , ₃ , ₄ , ₂ ,..., ₅ , as shown in FIG.
，
The signals respectively assigned to ₁ are output in time series. This signal is input to the high frequency transmitter 4 and transmitted from the antenna 5 on a higher carrier signal. This transmission signal is received by the front end 9 via the antenna 8 of the wireless base unit 7. The signal received by the front end 9 is input to the filter section 11 via the amplifier 10,
Its frequency components are identified. The output from the filter section 11 is sent to the microcomputer 12.
and is compared with the address set in the address setting section 13. In the address setting section 13,
The addresses assigned to each of the first to jth wireless slave units 1 ₁ to 1 _j are stored in advance, and when the received signal matches any address, the addresses assigned to each of the first to jth wireless slave units 1 ₁ to 1 _j are stored. It is now possible to determine which of these is the transmission source. This determination result is displayed and output on the display section 14. Any display method can be used on the display unit 14, such as sound, light, sound and light, etc.

By the way, at each timing when the outputs of the scanning output terminals S ₁ , S ₂ , ..., S _o reach the H level, a house code is installed to prevent mutual interference between adjacent houses, and each wireless slave unit 1 ₁ A channel code for determining ~1 _j , a monitor code representing the content to be monitored, etc. are assigned. The above address is a combination of house code and channel code. As a monitor code, the timing at which the lowest scanning output terminal S _o becomes H level is assigned, and if you want to monitor whether the monitored device is on or off, it is sufficient to use two frequencies. Furthermore, if the monitored device is to be monitored to see whether it is low, medium, or high, three frequencies may be used.
Normally, the number of modes for status monitoring is 2 to 4.
Since it is possible to monitor in the mode, 2 to 4 frequencies are sufficient as frequencies to be used.

The embodiment shown in FIG. 3a shows a case where the number of scanning output terminals is six and the frequency used is two. In this embodiment, if channels are assigned to the timings at which each of the terminals S ₁ to _{S 5} becomes H level, the number of channels will be 32, and the monitor code will be 2 signals. At this time, the wireless main unit 7 performs channel identification at the timing when each terminal S ₁ to _{S 5} becomes H level, identifies the monitor code at the timing when the terminal S ₆ becomes H level, and drives the display unit 14. I'm starting to do that. In this embodiment, the scanning output terminal S ₆
is connected to frequency selection terminal ₂ , so the monitor cord always has the frequency corresponding to terminal ₂ .
FIG. 3b shows the output of the oscillation circuit section 3 when the switch 6 is turned on. Furthermore, the embodiment shown in FIG. 4a is a modification of the embodiment shown in FIG. 3 in which it is possible to select which of the frequency selection terminals ₁ and ₂ the scanning output terminal S ₆ is connected to by means of a switch 6b. . Switch 6a is switch 6b
It is a normally open type switch that interlocks switch 6.
When b is switched from the neutral position to either one, power is supplied to the oscillation circuit section 3 and the high frequency transmitting section 4. Figure 4b
shows the output of the oscillation circuit section 3 when the switch 6b is switched to either one. As shown in the figure, in this embodiment, the scanning output terminal _S6 is
At the timing when the frequency reaches the level, either the frequency assigned to the frequency selection terminal ₁ or ₂ is output according to the switching of the switch 6b.

However, each wireless handset 1 ₁ , 1 ₂ ... 1 _j , etc. is installed near security sensors in windows, electric locks at entrances, power switches for room coolers, gas leak sensors in bathrooms and kitchens, fire sensors, etc. , opening and closing windows, opening and closing the entrance door, turning on and off the room cooler,
The wireless main unit 7 can monitor the opening and closing of the electric lock, the presence or absence of gas leakage, the presence or absence of fire, etc.

〔Effect of the invention〕

The present invention is constructed as described above, and since a plurality of wireless monitor slave units are provided in which each scanning output terminal is connected to an arbitrary frequency selection terminal as appropriate, it is only necessary to slightly change the connection pattern of each wireless slave unit. It is now possible to emit different transmission signals from each wireless cordless handset, and by providing a normally open switch that turns on and off the power supply to the high frequency transmitter of each wireless cordless handset, each wireless cordless handset can emit different transmission signals. The transmitted signals are not emitted all the time, so it is possible to make it difficult for the transmitted signals to collide.
Furthermore, since we have installed a wireless base unit that receives the transmitted signal from the wireless slave unit, identifies the frequency component of the received signal, determines the transmission source, and outputs the determination result, it is distributed at various locations indoors. It is possible to centrally monitor the signals from the wireless slave unit using the wireless master unit, eliminating the need for wiring a dedicated 2-wire signal line as in the past, and enabling centralized monitoring of indoor sensors, etc. in existing homes. When installing the system, construction work is significantly easier, and the signal lines are not exposed to the outside, so it has the advantage of improving appearance.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram of an embodiment of the present invention.
FIG. 2 is an explanatory diagram of the same operation as above, FIG. 3a is a block diagram of another embodiment of the present invention, FIG. 3b is an explanatory diagram of the same operation as above, and FIG. 4a is still another embodiment of the present invention. The block circuit diagram of FIG. 4B is an explanatory diagram of the same operation. 1 ₁ to 1 _j are wireless slave devices, 3 a is a scanning output section, 3 b is a frequency setting section, 4 is a high frequency transmitting section, 5
1 is a switch, 7 is a wireless base unit, 9 is a front end, 11 is a filter section, 12 is a microcomputer, and 14 is a display section.

Claims (1)

[Claims] 1 Consists of multiple output terminals, any one of which
a scanning output section having a scanning output terminal in which an output is generated from one terminal and the terminals generating the output are sequentially switched; and a frequency selection terminal consisting of a plurality of input terminals; When an input is input to one terminal, a frequency setting section outputs a signal of the frequency assigned to that terminal, a high frequency transmitting section connected to the output of the frequency setting section, and a constant power supply that turns on and off the power supply to the high frequency transmitting section. a receiving unit that includes a plurality of wireless monitor slave units each having an open type switch, each scanning output terminal being connected to an arbitrary frequency selection terminal as appropriate, and receiving a transmission signal from each wireless monitor slave unit; A wireless parent device having a filter unit that identifies frequency components of a received signal, a determination unit that determines a wireless slave device as a transmission source according to the output of the filter unit, and a monitor output unit that outputs the determination result of the determination unit. 1. A wireless monitor device comprising: a wireless monitor device;