JP2871900B2 - Multi-frequency band radio identification method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to a multi-band radio determination system, in particular details, even in between the plurality of radios having different frequency bands, that give easily call radio communication It is about the method.

[0002]

2. Description of the Related Art Conventionally, a unidirectional communication between a plurality of radios has been proposed.
Or when developing designing radios that are used to call each other in both directions, especially there is no problem in the case of a circuit designed so that obtained communicate in the same frequency bands, a variety of frequency When a plurality of wireless devices having a band exist or are manufactured, the functions of the wireless devices themselves may be the same, but only the frequency data may be different from each other.

In such a situation, when it is necessary to make a call between the different radio devices, it is necessary to design software for processing different frequency data for each frequency band. Become. That is, assuming that the main frequency band of one wireless device is, for example, 800 MHz and the frequency band of the other wireless device is 1500 MHz, when a call is performed between the two wireless devices, the frequency of one wireless device is It is necessary to design and incorporate software for processing data with a band of 1500 MHz, and for the other radio, it is necessary to design and incorporate software for processing data with a frequency band of 800 MHz.

However, to design software for processing other frequency band data for each radio,
Dedicated to CPU etc. including newly dedicated ROM, etc.
In addition to the necessity of customization, a special mask needs to be produced, and the production process is complicated and the cost is increased. In addition, if such a method is adopted, not only each process management becomes complicated, but also it is necessary to efficiently manage parts used for production, produced products, and the like, which requires another management cost. There was also the problem of saying.

[0005]

The object of the present invention is to solve the above is to improve the drawbacks of the prior art described above, at a plurality of different frequency bands among the plurality of radios that give running call using individually Without having to prepare software for frequency data individually for each frequency band, it is possible to easily perform communication between the two radios, and at the same time lower production costs and significantly reduce management costs in the production process multi-frequency band radio determination how that obtained with and provides a.

[0006]

SUMMARY OF THE INVENTION The present invention basically employs the following technical configuration to achieve the above object. That is, a call between that capable of at least two radios to call each other using a plurality of frequency bands separately performed, to each radio, antenna
Na means, receiving means, transmission manual stage, frequency synthesizer means, and control means is provided with a set output frequency of the frequency synthesizer means by said control means
When matching the predetermined frequency which is the frequency Singh
In systems where the lock signal is output from the synthesizer means
And transmitting predetermined first frequency data from one first wireless device to control means of the other second wireless device. Frequency
The output of the number synthesizer means from the second radio to the first
The first step to be included in the data to be sent back to the line machine, if the returned data from the second <br/> radios include a locking signal from the frequency synthesizer unit of the second radio, a second
A second step of determining that the frequency band of the wireless device is the first frequency band based on the frequency data transmitted from the first wireless device, and transmitting the data returned from the second wireless device to the second wireless device. In the case where the lock signal from the frequency synthesizer means is not included , the second frequency data different from the first frequency data transmitted from the first wireless device is transmitted to the second wireless device.
Transmitted to the control means, and the frequency synthesizer of the second radio.
Returning the output of the sizer means from the second radio to the first radio
A third step of including in the data to be transmitted, and the data returned from the second wireless device following the third step is transmitted to the second wireless device.
Of the case containing the lock signal from the frequency synthesizer means, the fourth step of determining that the frequency band of the second radio is a second frequency band based on the frequency data transmitted from the first radio, And data returned from the second wireless device following the third step is the frequency synth of the second wireless device.
If the lock signal from the sizer is not included , the first
Multi-frequency band radio to the fifth step of sequentially changed as the in frequency band radio that match in the determination result to the second or the fourth step, characterized in that and a metropolitan This is a determination method .

[0007]

It is at the multiple frequency band radio determination how applied to the present invention, because it uses a kind of technical construction described above, transmits a predetermined signal from one radio, the other radio The frequency band owned by the other wireless device is determined based on the return signal of the other wireless device, and the communication frequency band of the other wireless device is switched and changed to match the frequency band of the other wireless device. To do

[0008]

EXAMPLES Hereinafter, a specific example of a multi-frequency band radio determination <br/> how according to the present invention in detail with reference to the drawings. Figure 1 is a diagram for explaining the principle of the multiple frequency band radio determination how according to the present invention, is also a diagram showing a specific example of a multi-frequency band radio determination how according to the present invention.

[0009] In at multiple frequency band radio determination methods from Figure 1, a plurality of at least two which is capable of calling each other the frequency band used individually wireless device 1 and the 2 In a system in which a telephone call is made between the wireless device 1, the transceiver 1 includes a transmitting / receiving unit 14 including an antenna unit 11, a receiving unit 141, and a transmitting unit 142, and the frequency synthesizer unit 1.
3 is provided. On the other hand, the wireless device 2 is provided with a transmitting / receiving unit 24 including an antenna unit 21, a receiving unit 241, and a transmitting unit 242 and a frequency synthesizer unit 23.

The first and second radios 1 and 2 have frequency synthesizer means 13 for each radio, respectively.
Causes control and 23, the receiving means 1 4, 24
, And arithmetic means (CPU) 12 and 22 for controlling. The wireless device according to the present invention has a frequency synthesizer, and the configuration of the frequency synthesizer is not particularly limited. For example, a circuit configuration as shown in FIG. You can use your own frequency synthesizer.

The frequency synthesizer in FIG. 2 outputs a reference divided frequency fR / L from a reference frequency dividing means 31 having a dividing ratio L connected to a reference frequency generating means 30 for generating a reference frequency fR. The output is the phase comparison means (P
D) and input to a voltage controlled oscillator (VCO) 32 via a low frequency bandpass filter (LPF) 33
34, where a predetermined divided frequency fp is output.

Meanwhile, divided frequency fp which is the output from the VCO is 2 coefficients pre scaler (frequency division ratio P and P + 1)
The output is input to the main counter 36 which is input to the PD 32 and the swallow counter 37, and is also input to the swallow counter 37.
The output of the swallow counter 37 is input to the second coefficient pre scan <br/> scaler 35.

Assuming that the frequency division ratios of the main counter 36 and the swallow counter 37 are N and M, respectively,
The frequency division frequency fp output from 4 is represented by fp = fRｆ (M + NP ・) / L. An arbitrary frequency can be oscillated by using the frequency synthesizer according to the present invention. Also, based on a command from the calculating means 12 or 22, predetermined frequency data is inputted from the frequency dividing number presetting means 38 to the main counter 36 and the swallow counter 37.

In the frequency synthesizer having such a configuration, when the output frequency of the voltage controlled oscillator (VCO) 34 matches predetermined frequency data set in the frequency division number presetting means 38, the phase comparing means (PD) 32
Output a lock signal indicating the coincidence.
In the multi-frequency band radio device discrimination method according to the present invention, a frequency synthesizer lock signal can be extracted from the output of the phase comparison means (PD) 32 in the frequency synthesizers 13 and 23, and the signal is output. Appropriate transmission means 1
The data can be returned to the other wireless device via 42 and 242.

The arithmetic means (CP) used in the present invention
U) 12 , 22 determine the presence or absence of the lock signal from among the signals transmitted from the partner wireless device, and set the oscillation frequency band of the wireless device to a predetermined value according to the presence or absence of the lock signal. Or, an instruction to change the setting to another frequency band is issued.

The operation procedure of the multi-frequency band radio identification method according to the present invention will be described below with reference to FIGS. FIG. 3 and FIG. 4 are diagrams showing operation timings of the multi-frequency band radio identification method according to the present invention. In the present invention, it is assumed that the functions of the two radios are the same, but the oscillation frequency bands are different. f ₁₁ , f ₁₂ , f ₁₃ ... f _1n are included,
In the other frequency band F2, individual frequencies f ₂₁ ,
It is assumed that f ₂₂ , f ₂₃ ... f _2n are included.

As shown in FIG. 3, first, one radio transmits time T1 and T2 to the frequency synthesizer of the other radio.
In between the sending predetermined frequency data of the frequency band F1, for example, f _11, to determine the status of the lock signal, the time T
If the lock signal is output in step 7, it is determined that the frequency band of the other wireless device is set to the predetermined frequency F1 transmitted from the one wireless device. The communication is started with the oscillation frequency set to frequency band F1.

[0018] In FIG. 3, the time t1 which is set after the time T2 is equivalent to at channel to set the time to the circuit, from the reception of the predetermined signal, the frequency synthesizer processing To certify the frequency channel. In the present invention, the time T
After two, a predetermined time t2 is set as the lock signal output presence / absence determination period. If the lock signal is not detected within the time t2, it is determined that the lock signal has not been returned.

In the example of FIG. 3, the state in which the lock signal is not output is set to "H" level, and the state in which the lock signal is output is set to "L" level.
The present invention is not limited to this. On the other hand, as shown in FIG. 4, between times T3 and T4, the frequency data of a predetermined frequency band F1, for example, if I send the f _11, the lock even after the predetermined time t2 after the time T4 at the signal output is not detected, between times T 5 and T 6, the frequency data of the other frequency bands F2, for example send the f _21, time T8 at time t in 2 after the time T 6 When the output of the lock signal is detected, it is determined that the frequency band of the other wireless device is set to the predetermined frequency band F2, and the oscillation frequency of the wireless device is set to the frequency band F2. Set up and start a call.

Still, when the lock signal is at a predetermined time t2
If the lock signal is not output within the above, the above operation is repeated using frequency data of another frequency band. FIG. 5 is a flowchart showing the above operation. After start by turning ON the power supply of the radio, in step (a), is transmitted from the first radio, the first frequency data f ₁₁ given to the second radio of the other .

A predetermined time (T2-T1) elapses after the transmission.
Thereafter, the output of the lock signal is present during a predetermined time t2.
Or not (Step (b)), and go to Step (c).
Then, it is determined whether or not the lock signal has been output. The
In step (c), it is determined that the lock signal has been output.
In the case where the second error is detected in step (d),
The frequency band of the line machine is the first frequency data f ₁₁Belongs to
It is determined that the frequency band is F1. In step (c)
If it is determined that the lock signal has not been output,
In step (e), the first radio sets
Predetermined second frequency data f for the second radio_{twenty one}Send
I believe.

A predetermined time (T2-T1) elapses after the transmission.
Thereafter, the output of the lock signal is present during a predetermined time t2.
Or not (Step (f)), and go to Step (g).
Again to determine whether the lock signal has been output.
You. When the lock signal is output in the step (g)
If it is determined, in step (h), the
The frequency band of the second radio is the second frequency data f _{twenty one}But
It is determined that the frequency band belongs to F2.

If it is determined in step (g) that the lock signal has not been output, the process returns to step (a) and repeats the above operations. The frequency data transmitted to the wireless device may use frequency bands F3, F4, etc. different from those described above. In this case, an error message may be displayed.

Next, in step (i), switching of the transmission / reception device, volume setting, and the like are executed in order to set the functional operation of each wireless device. In step (j), n channels of each frequency band are set. catcher Ne make Le frequency changes by at determination step (d) and step (h) in step (k), when the frequency band of the second radio is the first frequency band F1 is step sets the frequency data of the n channel to including frequency data f ₁₁ according to the frequency band F1 in (l), also when the frequency band of the second radio is a first frequency band F2 sets the frequency data of the n channel to <br/> Le including frequency data f ₂₁ according to the frequency band F2 in step (m).

[0025]

It is in the present invention, according to the present invention, because it uses the was such a structure described above, the other had to be software to prepare two models worth to be used in a conventional multi-frequency band radio determine how, While two types of masks, CPUs, and two types of program ROMs were required, and two types of board units on which each component was mounted were required, one type was prepared in the present invention. Only suffices, the preparation of parts in the manufacturing process and the production management of parts are simplified,
In addition, since the manufacturing process and the preparation process are simplified and the production efficiency is improved, the effect of cost reduction by mass production can be obtained. In the present invention, the maintenance stock is also reduced in the maintenance field, which greatly contributes to cost reduction in management and maintenance.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a multi-frequency band wireless device discrimination method according to the present invention.
1 is a block diagram illustrating a configuration example of a wireless device used in a method .

Figure 2 is a block diagram showing a configuration example of a frequency synthesizer that obtained and used in the present invention.

Figure 3 is a Taiaguramu showing an operation example of in multi-frequency band radio determination <br/> how the present invention.

Figure 4 is a Taiaguramu showing an operation example of in multi-frequency band radio determination <br/> how the present invention.

FIG. 5 is a diagram illustrating a multi-frequency band wireless device discrimination method according to the present invention;
6 is a flowchart illustrating an operation example of a method .

[Explanation of symbols]

 1, 2, radio equipment 11, 21, antenna 12, 22, arithmetic means, CPU 13, 23, frequency synthesizer 14, 24, transmission / reception means 141, 241, transmission means 142, 242, reception means

Claims (1)

(57) [Claims] 1. A call is made between at least two radios capable of communicating with each other using a plurality of frequency bands individually, and each radio has an antenna means, a reception means, and a transmitter. stage, frequency synthesizer means, and control means is provided with, when the output frequency of the frequency synthesizer means matches a predetermined frequency which is set by said control means, the lock signal is output from the frequency synthesizer means Multi-frequency band wireless device
In another method, one of the first radios controls the other second radio.
Transmitting predetermined first frequency data to the second stage ;
The output of the frequency synthesizer means of the wireless device to the second wireless device
From the first step to be included in the data to be sent back to the first radio, if the returned data from the second radio comprises a lock signal from the peripheral <br/> wavenumber synthesizer means of the second radio the second step determines that the frequency band of the second radio is a first frequency band based on the frequency data transmitted from the first radio, the data sent back from the second radio If the lock signal from the frequency synthesizer means of the second radio is not included , the second frequency data different from the first frequency data transmitted from the first radio is transmitted to the second radio . Radio control hand
Transmit to the second stage, the frequency synthesizer of the second radio
Returning the output of the means from the second radio to the first radio
That the third to be included in the data process, if the third step followed by the returned data from the second radio comprises a lock signal from the frequency synthesizer unit of the second radio, the second A fourth step of determining that the frequency band of the radio is a second frequency band based on frequency data transmitted from the first radio, and a second radio following the third step Data returned from the machine
Sequentially but if that does not include lock signal from the frequency synthesizer unit of the second radio, as the in frequency band to the first radio that match in the determination result to the second or the fourth step A multi-frequency band radio device discriminating method, comprising: a fifth step of changing.